In which reaction major product is hydrocarbon?

R C O O K E l e c t r o l y s i s - ------ \to

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R C O O A g I_{2}, Δ - -- \to

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C H_{3} - C H_{3} C l_{2} / h ν - --- \to

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None of the above

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Solution

The correct option is A $R C O O K E l e c t r o l y s i s - ------ \to$
Electrolysis of conc. aq solution of sodium or potassium salt of carboxylic acid gives alkanes.

This reaction is not given by sodium or potassium salt of formic acid.

$2 R C O O K + 2 H_{2} O E l e c t r o l y s i s - ------ \to R - R + 2 C O_{2} + 2 K O H + H_{2}$

This reaction is also known as Kolbe's electrolysis.

Option A is correct.

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{C H}_{3} - C l + A g C N \to P r o d u c t .

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{C H}_{3} C H = C H - {C H}_{3}

{C H}_{2} = C H {C H}_{2} {C H}_{3}

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