1.

When CH_2=CH-Br is reacted with HBr then the product formed is A and when CH_2=CH-COOH is treated with HBr then the product formed is C. Hence here

Answer»

A is `undersetunderset(Br)|CH_2-undersetunderset(Br)|CH_2`

C is `CH_3-undersetunderset(Br)|CH-COOH`
C is `undersetunderset(Br)|CH_2-CH_2-COOH`

SOLUTION :When `CH_2=CH-Br` is treated with HBr then the carbocation formed is `CH_3 overseto+CH-Br` which is resonance STABILIZED, hence A is `CH_3underset"Br"UNDERSET"|"CH-Br` while when `CH_2=CH-COOH` is REACTED with HBr then the carbocation formed is `overseto+CH_2-CH_2-COOH` Hence C is `undersetunderset(Br)(|)CH_2-CH_2COOH`
Thus (b) and (d) are correct whereas (a) and (c ) are incorrect


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