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Q.

In-correct statement among the following is
I) LiAlH4 can reduce an amide into amine without change in the number of carbon atoms
II) a primary amide can be reduced to a primary amine by Br2/KOH with same number of carbons
III) a primary amide can be reduced to a primary amine by LiAlH4 with (n-1) carbon atoms
IV) Hoffmann’s bromamide reaction is useful to prepare aniline from benzamide

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a

III and IV

b

II only

c

I only

d

II and III

answer is D.

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Detailed Solution

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We can see that they is loss of one carbon.

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In-correct statement among the following isI) LiAlH4 can reduce an amide into amine without change in the number of carbon atomsII) a primary amide can be reduced to a primary amine by Br2/KOH with same number of carbonsIII) a primary amide can be reduced to a primary amine by LiAlH4 with (n-1) carbon atomsIV) Hoffmann’s bromamide reaction is useful to prepare aniline from benzamide