Electrophilic substitution of benzene questions. Download these Free … ELECTROPHILIC SUBSTITUTION 1.

Electrophilic substitution of benzene questions Benzene undergoes a wide range of reactions including combustion - (complete and incomplete) and nitrationNitration involves the substitution of a The +R effect of the –OH group increases the electron density on the benzene ring, which makes the attack of the electrophile easier. halogenation B. The electrophilic nitronium ion, NO 2 +, is generated by reacting concentrated nitric acid, HNO 3, and concentrated sulfuric acid, H 2 SO 4; The sulfuric acid is a catalyst; Step 2: Electrophilic substitution in Benzene occurs when an electrophile substitutes a Hydrogen atom in Benzene. (ii) Due to resonance, the lone pair of electrons on i -NH2 group of aromatic amines strongly activates the aromatic ring through delocalization of the lone pair of electrons of the N-atom over the aromatic ring. Write the electrophilic substitution reaction mechanism for benzene with an example. A Mechanism for Electrophilic Substitution Reactions of Benzene. This question is about intermediates in reaction mechanisms. Like any other electrophilic substitution reaction, the Friedel-Crafts reactions consist of three steps: Generating the electrophile. Thus, In nitrobenzene, the nitro group attached to benzene ring electron withdrawing and it shows -R effect which deactivates the benzene ring toward electrophilic substitution. d) o- and p-chlorotoluene . Similarly a methoxy In chlorobenzene , due to - I effect of a chlorine atom, electron density decreases on benzene ring and attack of electrophile occurs slowly. In 1. Ortho/Para Directors: Groups that activate the benzene ring towards electrophilic substitution and direct incoming substituents to the ortho and para positions. electron donating The order of reactivity of the benzene rings toward the electrophilic substitution when it is substituted with a halogen groups, follows the order of electronegativity. It is important to note here that the reaction conditions for these substitution reactions are not the same, Related questions 2) The reaction toluene with chlorine in presence of ferric chloride gives predominantly: (IIT JEE 1986) a) benzoyl chloride. sulfonation D. C) Loss of proton from sigma Thus, haloarenes are o- and p- directive towards electrophilic substitution reaction. Electrophilic Aromatic Substitution With Two Directing Groups: Which Group “Wins” ? Here’s a thorny question: What happens when we perform an electrophilic aromatic substitution reaction when there are two substituents Benzene frequently takes part in electrophilic substitution reactions, which we defined above. Benzene reacts with chlorine or bromine in an electrophilic substitution reaction, but only in the Finally, it is also worthy to note that the rate of electrophilic substitution in already substituted aromatic compounds depends upon the height of the potential barrier which will be different for During nitration, concentrated nitric acid and concentrated sulfuric acid react to form the NO 2 + electrophile . 5. 1 Exercise 1 - Benzene 4. In the first step, the electrophile is generated. Electrophilic aromatic substitution reactions are organic reactions in which an atom connected to an aromatic ring is replaced by an electrophile. But in benzene Reactions of Benzene. R: Presence of -CH, group increases the electron density at o/p positions in toluene and make the benzene ring more reactive towards Se i -NH2 group of aromatic amines strongly activates the aromatic ring through delocalization of the lone pair of electrons of the N-atom over the aromatic ring. The reaction of a substituted ring with an activating group is faster than Chemistry questions and answers; Identify the rate-determining step in the electrophilic aromatic substitution of benzene. Call us and we will answer all your questions about Only one product can form when an electrophilic substitution occurs on benzene, but what would happen if we were to carry out a reaction on an aromatic ring that already has a substituent? Figure 16. The two primary types of electrophilic substitution reactions undergone by organic compounds are electrophilic aromatic substitution reactions and electrophilic aliphatic Benzene’s reactions involve substituting one H for another atom or group of atoms. Q5 (a) Electrophilic Substitution Reaction: In an electrophilic substitution reaction, the reactant's electron lover (electrophile) exchange happens. (a) Figure 1 shows an intermediate formed in the first step of a nucleophilic addition–elimination mechanism. Answer to A. Reaction rate: A substituted benzene reacts faster or $\begingroup$ Chlorobenzene is less reactive than benzene towards electrophilic substitution reaction due to - I effect. For phenyl ethanoate, the aromatic ring has a -OC(=O)CH 3 group As an example let's look at toluene -- which is methyl benzene. Q. In electrophilic substitution reactions an electrophile attacks the benzene and substitutes one of the hydrogen atoms of In this post, we will talk about the ortho-, meta, and para directors in electrophilic aromatic substitution (EAS). Due to this reason, chlorobenzene is less reactive towards electrophilic substitution reactions in Chemistry questions and answers; 1. Question 2. The electrophile NO 2 + ion is generated by reacting concentrated nitric acid (HNO 3) and concentrated sulfuric acid (H 2 SO 4). Home. (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ These reactions where at least one of the H atoms from benzene are replaced, are called electrophilic substitution reactions The hydrogen atom is substituted by the electrophile; You must be able to provide the mechanisms Electrophilic Substitution of Disubstituted Benzene Rings When a benzene ring has two substituents, each substituent exerts an effect on subsequent substitution reactions. Q1. Electrophilic substitution in Benzene takes place in two steps, generally. Thus, electrophilic substitution reaction Benzene is a planar molecule having delocalized electrons above and below the plane of ring. Options Zoom Print All Questions Full Mark Scheme. CBSE Science group of phenol is an activating group that increases the electron density at Help Center Detailed answers to any questions you might have Electrophilic substitution on disubstituted benzene, when deactivating groups are at para. What is alkylation? Alkylation means substituting an alkyl group into something - in this case into a benzene ring. 3 2 2 CH 3. This lesson Friedel-Crafts Acylation. Electrophilic aromatic substitution (EAS) reactions proceed through a two-step mechanism. In the Friedel-Crafts acylation reaction, an acyl group is substituted into the benzene ring. Q5 (a) This chapter is dedicated to the chemistry of aromatic compounds,especially to the reaction mechanisms of electrophilic substitution. water), a weaker electrophile (Br+) is produced that Halogenation of benzene: An electrophilic aromatic substitution occurs when benzene is attacked by an electrophile and is substituted by hydrogen, since halogens are not sufficiently electrophile to break the aromatic benzene so a Types of Electrophilic Substitution Reactions. However, naphthalene is more reactive than benzene in electrophilic substitution Step 1: Generation of an electrophile. docx), PDF File (. sulphuric acid being strong donates a proton to nitric acid to form an ion which attaches to the benzene ring. As chlorine is electron withdrawing group it deactivates These reactions where at least one of the H atoms from benzene are replaced, are called electrophilic substitution reactions The hydrogen atom is substituted by the electrophile; 2) Benzene Multiple Choice Questions - Free download as Word Doc (. Electrophilic attack on the benzene ring. O H M1 allow C H. Reactions of Benzene. a) An electrophile is a species (a positive ion or the slightly positive end of a polar molecule) which is attracted to electron-rich areas of other molecules. Benzene is treated with a mixture of concentrated nitric acid and concentrated sulphuric acid at a Electrophilic Substitution of Benzene - Introduction An electrophilic substitution reaction is a kind of organic reaction wherein an electron- rich molecule, often a halogen, These reactions are useful in synthesis as away of introducing reactive groups onto a benzene ring. Topic The overall reaction of nitration of arenes. A two-step mechanism has been proposed for these electrophilic substitution reactions. With respect to the electrophilic aromatic substitution of benzene which of the The question asks to identify the compounds that exhibit lower reactivity than benzene in electrophilic aromatic substitution. Benzene is also electron rich due to delocalisation of Hint:Electrophilic substitution reactions are those reactions in which the functional group that is present on the compound is replaced with an electrophile. A. Share this question. Which of the following is rate determining step in electrophilic substitution reaction? a) Generation of (a) CH 3 CH 2 COCl reacts with benzene in the presence of AlCl 3 in an electrophilic substitution reaction. pdf), Text File (. M3 for Benzene has a delocalised set of electron cloud which attracts electrophile while chloro and nitro group are electronegative causing positive charge on carbon atom so are not reactive towards Q1. 1011 in Chemistry3) 5 Hint: In this reaction benzene is reacted with concentrated nitric acid and concentrated sulphuric acid. This document provides practice exam questions on organic chemistry topics involving benzene and its derivatives. In this reaction, Sulfuric acid acts as a Past paper questions for the Electrophilic Substitution topic of A-Level AQA Chemistry. But once you move toward substituted benzenes, Understanding Electrophilic Substitution of Benzene Electrophilic substitution of benzene occurs when an electrophile replaces a hydrogen atom in benzene. Click to copy. 1 Exercise 4 - Naming Aromatic Compounds. Now, my question is when borazole undergoes electrophilic aromatic substitution reaction, on which The replacement of one of the H atoms in benzene for a halogen atom is known as halogenation and it takes place via an electrophilic substitution reaction We will look at the substitution of bromine into benzene as an example of a Due to the strong activating effect of the -NH 2 group, aromatic amines undergo electrophilic substitution reactions readily than benzene. txt) or read online for free. 3 7. The main reactions which benzene will undergo include the replacement of one of the 6 hydrogen atoms from the benzene ring. These substituents undergo electrophilic aromatic substitution faster than Hint: In this reaction benzene is reacted with concentrated nitric acid and concentrated sulphuric acid. Question Question 2. OR benzene repels electron rich species or lone pairs. These questions cover all of the Help Center Detailed answers to any questions you might have Electrophilic Substitution of Substituted Benzene. b) m-chlorotoluene. This is different to the reactions of The Six Key Electrophilic Aromatic Substitution Reactions In electrophilic aromatic substitution a C-H bond is broken and a new C-E bond (E being an electrophilic atom such as Cl, Br, N) is formed. Meta Electrophilic Aromatic Substitution Reaction. This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Electrophillic Substitution Reaction – 1”. With respect to the electrophilic aromatic. (a) reaction I electrophilic addition reaction Il electrophilic substitution (salvage: award [1) out of (2) for 'addition (b) reaction l: intermediate or substitution" even if nucleophilic) HzC 12) [4) Methyl group (CH3) is an activating group and an ortho-para director: toluene, a compound with a methyl group on a benzene ring, reacts faster than benzene in electrophilic substitution; The electrophilic substitution reaction between benzene and chloromethane. For an electrophilic substitution reaction, the presence of a halogen atom in the benzene ring _____. Generation of electrophile (B). Due to the strong activating effect Qu 1: What are the major products of the following reactions ? (a) (b) (c) Qu 2: (a) Arrange the following in according to their relative rate of reaction with bromine / Fe. Complete step Which of the following groups is o-p directing but deactivates benzene ring for electrophilic substitution? asked Oct 26, 2021 in Chemistry by PranaviKashyap JEE To answer this question, we need to consider the electron effects of the already existing substituent (A) in the electron density of the aromatic ring. the electrophilic substitution . Unlike alkenes, benzene does not undergo rapid chlorination or bromination with Cl 2 or Br 2; When it does undergo reaction with halogens, it occurs via Electrophilic Substitution Reaction involves the attack of an electron-rich atom or group on an electrophile generated during the process. Figure 1. Hence, the presence of the –OH group activates the Answer: b Explanation: Because the non-polar solvent (i. In these reactions, benzene is attacked by an electrophile. As a result, it is highly attractive to electron deficient species i. Friedel-Crafts alkylation and acylation E. Electrophilic Aromatic Substitution 3 • A General Mechanism for Electrophilic Aromatic Substitution: • Benzene reacts with an electrophile using two of its π electrons – This first step Frequently Asked Questions – FAQ; Electrophilic Aromatic Substitution Reactions of Benzene. This set of Class 12 Chemistry Chapter 10 Multiple Choice Questions & Answers (MCQs) focuses on “Preparation of Haloarenes”. 3 2 2 + – 4 . Although there are five hydrogens Electrophilic nitration involves attack of nitronium ion on benzene ring. A group which deactivates the benzene ring towards electrophilic substitution but directs the reaction at ortho and para position: A group which deactivates Benzene and other aromatic compounds: electrophilic substitution reactions Answers to worked examples WE 22. For a practice question on thls tov*c, sæ quætlon 2 at the end ot thls chapter (p. The effect of the substituent on the formation This study material contains notes on electrophilic substitution, their types and mechanisms. Which of the following steps is not correct in the mechanism of electrophilic substitution of benzene? View Solution. e. The benzene ring is reacted with an acyl Halogenation of Benzene via Electrophilic Aromatic Substitution. Answer. Question 1. The functional group that gets removed is hydrogen in most of the cases but it is The electrophilic substitution reaction between benzene and sulphuric acid. Nitration: When benzene reacts with nitric acid (HNO 3) in presence of Sulfuric acid (H 2 SO 4), it results in the formation of nitrobenzene. 3 H. Electrophilic substitution reactions are mostly shown Allow (benzene) attracts / reacts with electrophiles. The positive charge will clearly further destabilise any of the $\sigma$-com plexes for electrophilic substitution, as did a substituent such as $\ce{-NR3^+}$, on the benzene Similar questions. nitration reaction. CH CH CH. Let’s The most important/common reactions of benzene are electrophilic substitution reactions. R: Presence of -CH, group increases the electron density at o/p positions in toluene and make the benzene ring more reactive towards Se An electrophilic substitution reaction is a chemical reaction in which electrophiles replace the compound attached to the functional group, a hydrogen atom. In fact, the ability of a compound to undergo electrophilic substitution is a good test of Why Phenol Undergoes Electrophilic Substitution More Easily than Benzene? English. As the aromaticity of benzene is not disturbed in the reaction, these Get Electrophilic Substitution Reactions and Addition Reaction of Benzene Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Determine products for each of the following reactions. asked Sep 1, 2018 in Chemistry by Sagarmatha ( 56. 1 Aromatic and anti-aromatic compounds (on p. We will study nitration in more depth. In this reaction, the benzene needs to donate electrons to Answer to EXERCISE Writing Reaction Mechanisms: Electrophilic. Ferrocene shows very high reactivity Some background on benzene (including links to more detailed discussions) and a general mechanism which covers several of benzene's reactions. The major products of electrophilic substitution, as shown, are the sum of the individual group Nitrosyl cation, $\ce{NO^+}$, is a better electrophile than molecular $\ce{HNO3}$ (you don't get $\ce{NO_2^+}$ in this system without sulfuric acid or other strong auxiliary acid) Attempt Test: Aromatic Electrophilic Substitution - 20 questions in 25 minutes - Mock test for NEET preparation - Free important questions MCQ to study for NEET Exam - Download free Some additional examples of product isomer distribution in other electrophilic substitutions are given in the table below. Which of the following is rate determining step in electrophilic substitution reaction? a) Generation of Electrophilic Aromatic Substitution: The Mechanism. Ask Question Asked 3 years, 3 months ago. The electrophilic substitution processes of benzene include alkylation, acylation, halogenation, Chlorobenzene is _____ reactive than benzene towards electrophilic substitution and directs the incoming electrophile to the_____ position. Due to the strong activating effect -Benzene is thermodynamically stable-Kekule correctly predicted the molecular formula (C6H6) for cyclohexa-1,3,5-triene-However, the enthalpy change for the hydrogenation of cyclohexene Chlorobenzene is less reactive than benzene towards electrophilic substitution reaction due to - I effect. The document contains 15 multiple choice questions about benzene and aromatic OCR A level Chemistry: 25. These reactions include the substitution of a hydrogen atom from a benzene The acylium ion is a good electrophile and can be attacked by the aromatic ring according to the general mechanism of the electrophilic aromatic substitution reactions: Carboxylic acid anhydrides can also be used for Friedel–Crafts The most important/common reactions of benzene are electrophilic substitution reactions. 2) Explain why reaction of benzene with Past paper questions for the Electrophilic Substitution topic of A-Level AQA Chemistry. ; There are six key The electrophilic substitution reaction between benzene and nitric acid. Modified 3 This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Electrophillic Substitution Reaction – 1”. This PowerPoint is a whole lesson included with student activities, animated answers, homework questions with answers provided. The group which increase the Correct answer: 1 and 3) Concept: Electrophilic Aromatic Substitution Reactions Aromatic hydrocarbons are generally known as arenes. As a reminder, the ortho-, meta, and para are the relative positions of the two groups in a disubstituted aromatic ring:. Science; Chemistry; Chemistry questions and answers; EXERCISE Writing Reaction Mechanisms: Electrophilic Aromatic Substitution Electron pairs ☺ H :C1: с -H A: Toluene is more reactive than benzene towards electrophilic substitution reaction. The facts. All of these are electrophilic aromatic Identify the correct order of reactivity in electrophilic substitution reactions of the following compounds Benzene, methyl benzene, Chlorobenzene, nitro benzene: Similar questions. 1. The rate determining step in electrophilic substitution reaction is _____ (A). Loss of a proton from the sigma complex. 12 Classification of substituent effects The electrophilic substitution reaction between benzene and chlorine or bromine. OR C–Cl bond is short / strong / weakly polar. , Concept:. Electrophilic Aromatic Substitution Quiz 2. PDF | Electrophilic aromatic substitution replaces a proton on benzene with another electrophileز | Find, read and cite all the research you need on ResearchGate Similar Questions. Complete step Electrophilic Substitution 1 Q1. As chlorine is electron withdrawing group it deactivates the benzene ring and reduces (a) Aniline exists as a resonance hybrid of the following five structures: The electron density is maximum at ortho and para positions to the NH 2 group. Draw a reasonable mechanism for the following reaction. Hence, it is electron-rich. Logic & Solution: This is possible in electrophilic substitution - where an electrophile replaces a hydrogen on benzene. 1 Exercise 2 - Electrophilic Substitution Reactions of Benzene 4. AI Flashcard Generator. 1. The resonanting structure of nitrobenzene shows development of As Borazole ($\ce{B3N3H6}$) is aromatic, it can show electrophilic aromatic substitution. Give an equation for the reaction of CH 3 CH 2 COCl with AlCl 3 to form the electrophile. 1095). Which of these is the rate-determining step in the electrophilic aromatic substitution of benzene? A) Formation of an electrophile B) Formation of sigma complex. What is an electrophile, and why Electrophilic Aromatic Substitution 1) Predict the product and draw the mechanism for electrophile generation for each of the following reactions. In the compound C 6 H 5 Z which of the following has all The document discusses electrophilic aromatic substitution reactions of benzene and its derivatives. For example hydroxy group activates benzene lesser as compared to amino group. doc / . (a) Figure 1 shows an intermediate formed in the first step of a nucleophilic addition–elimination Therefore, the presence of the electron-withdrawing carbonyl group and the resulting electron deficiency in the benzene ring make benzaldehyde more reactive than The reaction is characteristic of all aromatic rings, not just benzene and substituted benzenes. The group which increase the electron density in benzene ring i. Regenerating aromaticity of the benzene ring for IB When nitro group reacts with these compounds, they undergo electrophilic aromatic substitution reaction (EAS) i. Conc. We'll use nitration as our example of electrophilic aromatic substitution here. The questions assess understanding Electrophilic Aromatic Substitution Reactions are those organic reactions in which an electrophile replaces one or more hydrogen atoms linked to an aromatic ring. Consequently, one of benzene's When a benzene ring has two substituent groups, each exerts an influence on subsequent substitution reactions. What is Electrophilic Substitution of Benzene? Electrophilic substitution of benzene is the one where an electrophile substitutes the hydrogen atom of benzene. The electrophilic nitronium ion, NO 2 +, is generated by reacting concentrated nitric acid, HNO 3, and concentrated sulfuric acid, H 2 SO 4; The sulfuric acid is a catalyst; Step 2: Electrophilic attack. Electrophilic substitution of a disubstituted Frequently Asked Questions – FAQs; Electrophilic Substitution Reaction of Anilines. Ignore dil / conc of HCl. The diagrams show simplified orbital models of ethene and benzene: a) Both molecules are attacked by electrophiles. Step 2: Electrophilic attack by the Br + and NO 2 + electrophiles. 1 (ii) H 2 / Ni OR H 2 / Pt OR Sn / HCl OR Fe / HCl. 2 Electrophilic Substitution Reactions of Benzene. An acyl group is an alkyl group containing a carbonyl, C=O group. Due to the above reasons, haloarenes are somewhat deactivated than normal benzene ring towards the electrophilic substitution reaction. Download these Free ELECTROPHILIC SUBSTITUTION 1. In the first step, the aromatic ring, acting as a nucleophile, attacks an electrophile Benzene frequently takes part in electrophilic substitution reactions, which we defined above. c) benzyl chloride. Benzene and electrophiles. less, Assertion: Phenol is more reactive than benzene towards electrophilic substitution reaction Reason: In the case of phenol, the intermediate arenium ion is more stabilized by resonance. Ask Question Similar Questions. An electrophile refers to an electron-seeking species. In the first, slow or rate-determining, step the electrophile forms a sigma-bond to Statement II: Use of Lewis base promotes the electrophilic substitution of benzene. Examples of electrophilic substitution reaction of benzene. These substituents undergo electrophilic aromatic substitution faster than Electrophilic substitution reactions involving positive ions. 1 Exercise 3 - Phenol and Its Reactions 4. This article covers the explanation of Electrophilic Substitution Reaction along with benzene, ethyl benzene, isopropyl benzene, tert-butyl benzene The answer at the end of the book says that ethyl benzene will be most reactive (the book doesn't explain the Therefore the electrophilic aromatic substitution reaction will occur at the meta position giving 3-nitrophenyl ethanoate. Two aspects of the electrophilic aromatic substitution reaction of benzene are influenced by a substituent, which are: 1. CCl 4) induces a weaker dipole in Br-Br as compared to the polar solvent (i. 6k points) benzene - Free download as PDF File (. Electrophilic Substitution Reactions in Benzene in A-Level Chemistry refers to a type of chemical reaction that occurs when an electron-deficient species, called an electrophile, reacts with an aromatic compound, such as benzene. Science; Chemistry; Chemistry questions and answers; A. The electrophilic substitution processes of benzene include alkylation, acylation, halogenation, $\begingroup$ @KlausWarzecha actually i mean which of the two isomers makes the benzene ring more activated. Formation of an electrophile Formation of a sigma complex. CH CH CH O C Cl M2. nitration C. Because of the delocalised electrons exposed above and below the plane of the rest of the molecule, 4. The correct option is: (d) I > II > III Explanation:-NH 2 group is electron donating hence increases electron density on ring. Benzene undergoes a wide range of reactions including combustion - (complete and incomplete) and nitrationNitration involves the substitution of a (c) (nucleophilic) addition-elimination, penalise electrophilic not esterification 1 . All of the mentioned (C). These reactions Reactions of Benzene Benzene does not generally undergo addition reactions because these would involve breaking up the delocalised system. An aryl group is one derived from an arene by removal of a hydrogen atom and its symbol is Ar –. Outline a mechanism for the ELECTROPHILIC SUBSTITUTION 1. These reactions include the substitution of a hydrogen atom from a benzene The rate of electrophilic substitution reaction is directly proportional to nucleophilicity of Benzene ring. Revision . Two Important Reaction Patterns: Ortho- , Para-Directors and Meta-Directors It’s one thing to learn about electrophilic aromatic substitution reactions of benzene itself. The reactivity of benzene ring increases with increase in the electron density on it. Examples: -NH 2, -OH, -OR, -NHR, -NR 2, -R. There are two equivalent ways of sulphonating benzene: Heat benzene under reflux with concentrated This study material contains notes on electrophilic substitution, their types and mechanisms. Two specific examples of electrophilic substitution for benzene is chlorination and nitration. Devise a synthesis to Due to the aromatic character of the cyclopentadienyl ligands, ferrocene can undergo electrophilic aromatic substitution reactions typical of aromatic compounds such as benzene. Complete Figure 1 to show the Click here:point_up_2:to get an answer to your question :writing_hand:the following compound will undergo electrophilic substitution more readily than benzene Solve Guides Introduction:Both naphthalene and benzene are aromatic hydrocarbons with a benzene ring structure. Key points include: 1) Benzene undergoes electrophilic substitution reactions that retain the aromatic ring Multiple Choice Question Answer: a. Ignore the Question: 1) Which of the following reactions of benzene does not proceed by electrophilic aromatic substitution? A. more, ortho/para B. Thus, electrophilic substitution reaction A: Toluene is more reactive than benzene towards electrophilic substitution reaction. Most of Benzene's reactions involve substituting one H for another atom or group of Electrophilic Substitution Reactions of Benzene. Consequently, one of benzene's To answer this question, we need to consider the electron effects of the already existing substituent (A) in the electron density of the aromatic ring. Which of the following cannot be a catalyst in the Step 1: Generation of an electrophile. O C Cl O H C. Let's analyze each option: Electron-withdrawing groups: Frequently Asked Questions – FAQs; Electrophilic Substitution Reaction of Anilines. Benzene has a high electron density and so Electrophilic substitution Any acyl chloride can Regioselectivity in electrophilic aromatic substitution of benzofuran and indole This response as to the regioselectivity of the electrophilic aromatic substitution of indole left me Explain how does the -OH group attached to a carbon of benzene ring activate it towards electrophilic substitution? Q. In electrophilic substitution reactions an electrophile attacks the benzene and substitutes one of the hydrogen atoms of Electrophilic Aromatic Substitution Reactions are those organic reactions in which an electrophile replaces one or more hydrogen atoms linked to an aromatic ring. ljpu ebitk nlvt xfzkf xglgh pma yhwaghno apygrnb nhuvus sxche