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Q.

Alkaline KMnO4 solution converts acetylene into

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a

Acetic acid

b

Acetaldehyde 

c

Oxalic acid

d

Glycol

answer is B.

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Detailed Solution

 When ethyne or acetylene reacts with cold KMnO4, they add 4 OH- to the triple bond. Oxalic acid is formed when a dilute aqueous solution of potassium permanganate oxidizes it. 

C2H2+4[O]⟶ cold alkaline KMnO4HOOC-COOH 

Therefore, the correct option (B) Oxalic acid.

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