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Statement 1 : Alkyl cyanide can be prepa...

Statement 1 : Alkyl cyanide can be prepared by carbylamine reaction.
Statement 2 : Ethyl amine when heated with chloroform in presence of alcoholic KOH gives isocyanide

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:
D
When primary amines are heated with chloroform in the presence of alcoholic KOH, isocyanides are formed. This reaction is known as carbylamine reaction, eg. ethyl amine gives ethyl isocyanide on treatment with `CHCl_3` and alcoholic KOH.
`underset("Ethyl amine")(C_2 H_5 - NH_2) + underset("Chloroform")(CHCl_3) + 3KOH(acl) overset(Delta)to C_2 H_5 - N -= C+ 3KCl+ 3H_2 O`
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Knowledge Check

  • 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.

  • Statement 1 : Addition of bromine to butane gives 1,4-dibromobutane. Statement 2 : Alkanes do not undergo addition reactions.

    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.

  • Statement 1 : Primary and secondary alcohols can be distinguished by Victor-Meyer's test. Statement 2 : Primary alcohols form nitrolic acid which dissolve in NaOH to form blood red colouration but secondary alcohols form pseudonitroles which gives blue colouration with NaOH.

    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.