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Questions  

How many of the following give foul smell when heated with CHCl3+KOH(alc)

A) Isopropylamine              B) Tert-butylamine        C) Secondary butyalamine       D) Methylamine               E) Aniline

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By Expert Faculty of Sri Chaitanya
a
2
b
1
c
5
d
3
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detailed solution

Correct option is C

R – NH2 + CHCl3 + 3KOH(alc)  →△ R – NC + 3KCl + 3H2O 1oalkyl amine                                               foul smelling                                                                           isocyanide Ar – NH2 + CHCl3 + 3KOH(alc) →△  Ar – NC + 3KCl + 3H2O Primary                                                      foul smelling Arylamine                                                   isocyanide                                      This is a test to identify a 1o amine, (alkyl, aryl, aryl alkyl)(A) (CH3)2CHNH2  –   1o amine   (B) (CH3)3CNH2  –   1o amine   (C) CH3CH(NH2)CH2CH3 – 1o amine   (D) CH3NH2 – 1o amine   (E) C6H5NH2 – 1o amine


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Similar Questions

An organic compound (C3H9N) (A), when treated with nitrous acid, gave a alcohol and N2 gas was evolved. (A) on warming with CHCI3 and caustic potash gave (C) which on reduction gave isopropylmethylamine. Predict the structure of (A).

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