From the reactions shown, A and B respectively are:

A: Hydrazine, KOH and heat; B: Zn-Hg HCl heat

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A: Zn-Hg HCl heat; B: cracking

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A: Zn-Hg HCl heat; B: aldol addition

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A: Hydrazine, KOH and heat; B: $(P h)_{3} P = C H_{2}$

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Solution

The correct option is D
A: Hydrazine, KOH and heat; B: $(P h)_{3} P = C H_{2}$

A denotes the conversion of an aldehyde into a hydrocarbon.
Most suitable named reactions to get this done would be Wolff-Kishner reduction
or the Clemmensen reduction.

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Similar questions

H_{3} C - C O C l H_{2} / P d - B a S O_{4} - -------- \to A Z n - H g / H C l - ------- \to B

C Z n - H g / H C l \leftarrow ------- - C_{3} H_{6} O A I_{2} / N a O H - ----- \to B

A (C_{3} H_{6} O)

B

C

A, B

C

C O C H_{2}

C H_{2} - C H_{2}

H g / Z n

H C l

Z n + 1 / 2 O_{2} \to Z n O + 35.25 k J . H g O \to H g + 1 / 2 O_{2} + 9.11 k J .

Z n + H g O \to Z n O + H g

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