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Statement 1 :Aryl halides cannot be prep...


Statement 1 :Aryl halides cannot be prepared by replacement of hydroxyl group of phenol by halogen atom.
Statment 2 :Phenols react with halogen acids violently.

A

Statement 1 is True, Statement 2 is True, Statement 2 is Correct explanation for Statement 1.

B

Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.

C

Statement 1 is True, Statement 2 is False.

D

Statement 1 is False, Statement 2 is True.

Text Solution

Verified by Experts

The correct Answer is:
C
Aryl halides cannot be prepared by replacing hydroxyl group of phenols because the carbon oxygen bond in phenols has a partial double bond character and is difficult to break being stronger than a single bond.
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Statement 1 : Phenol cannot be converted into ester by direct reaction with carboxylic acid. Statement 2 : Electron withdrawing groups increase the acidity of phenols.

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Knowledge Check

  • Assertion: Arylhalides cannot be-prepared by replacement of hydroxyl group of phenol by halogen atom. Reason : Phenols react with halogen acids violently

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.

  • The halogen compound which will not react with phenol to give ethers is

    A
    ethyl chloride
    B
    methyl chloride
    C
    benzyl chloride
    D
    vinyl chloride

  • Statement 1 Aromatic primary amines cannot be prepared by Gabriel phthalimide synthesis. Statement 2 : Aryl halides do not undergo electrophilic substitution with anion formed by phthalimide.

    A
    Statement 1 is True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.
    B
    Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.
    C
    Statement 1 is True, Statement 2 is False.
    D
    Statement 1 is False, Statement 2 is True.

    • Similar Questions

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    Statement 1 : In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents Statement 2 : The amino group is protonated in strongly acidic solution, and thus the lone pair of electron on the nitrogen is no longer available for resonance.

    Statement 1 : Anisole undergoes electrophillic substitution at o-and p-positions. Statement 2 : Anisole is less reactive than phenol towards electrophillic substitution reactions.

    Statement 1 : Carboxylic acids (R-overset(O)overset(||)C-OH) have a carbonyl group but it does not give the test of carbonyl group. Statement 2 : Due to resonance, the double bond character of group is greatly reduced

    Statement 1 : H_(2) O is the only hydride of group 16 which is a liquid at ordinary temperature. Statement 2 : Inice, each oxygen atom is suirounded by two covalent bonds and two hydrogen bonds.

    Statement 1 : Dichloro and trichloro acids are stronger than monochloroacetic acid. Statement 2 : An increase in the number of electronegative groups on the alkyl chain increases the strength of the acid.

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