Statement-1 - Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous AlCl-3 yields acetophenone and not poly substituted products- Statement-2 - Acetophenone formed- poisons the catalyst preventing further reaction- Statement-1 is false but Statement-2 is true-Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1-Statement-1 is true but Statement-2 is false-Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1-

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Standard XII

Chemistry

Freidel Craft Alkylation Acylation

Statement-1 :...

Question

Statement-1 : Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous $A l C l_{3}$ yields acetophenone and not poly substituted products.
Statement-2 : Acetophenone formed, poisons the catalyst preventing further reaction.

Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

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Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

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Statement-1 is true but Statement-2 is false.

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Statement-1 is false but Statement-2 is true.

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Solution

The correct option is C
Statement-1 is true but Statement-2 is false.

Correct R: $C H_{3} C O$ group in acetophenone being electron-withdrawing reduces the electron density in the benzene ring, thereby preventing further electrophilic substitution.

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Similar questions

Statement-1 : Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous $A l C l_{3}$ yields acetophenone and not poly substituted products.
Statement-2 : Acetophenone formed, poisons the catalyst preventing further reaction.

Q. Statement 1: An acid reacts with a base to form salt and water, this type of reaction is known as neutralisation reaction.
Statement 2: Neutralisation reaction are exothermic reaction.

The correct statement for neutralisation reaction is:
(a) Both the statements are true, and statement 2 is the correct explanation for statement 1
(b) Both the statements are true, but statement 2 is not the correct explanation for statement 1
(c) Statement 1 is true, but statement 2 is false
(d) Statement 2 is true, but statement 1 is false
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{F e}_{2} O_{3}

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Statement 2: Some of the displacement reactions are highly exothermic reactions.

(a) Statement 1 is true, but statement 2 is false.
(b) Statement 1 is false but statement 2 is true.
(c) Statement 1 and 2 both are true but 2 is not the correct explanation of 1.
(d) Statement 1 and 2 both are true and 2 is the correct explanation of 1.

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Statement-1 : Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous AlCl3 yields acetophenone and not poly substituted products. Statement-2 : Acetophenone formed, poisons the catalyst preventing further reaction.

The correct option is C Statement-1 is true but Statement-2 is false. Correct R: CH3CO group in acetophenone being electron-withdrawing reduces the electron density in the benzene ring, thereby preventing further electrophilic substitution.

Statement-1 : Friedel-crafts reaction between benzene and acetic anhydride in the presence of anhydrous $A l C l_{3}$ yields acetophenone and not poly substituted products.
Statement-2 : Acetophenone formed, poisons the catalyst preventing further reaction.

The correct option is C
Statement-1 is true but Statement-2 is false.

Correct R: $C H_{3} C O$ group in acetophenone being electron-withdrawing reduces the electron density in the benzene ring, thereby preventing further electrophilic substitution.