Question

Dil h2so4 hgso4 can be used to distinguish between but1yne and but2yne

Answer 1

1 butene has a double bond between the 1st and 2nd carbon atom 

1 butyne has a triple bond between the 1st and 2nd carbon atom

 

But-1-yne + KMnO4 /H+ = Butane -2-3 di one

but-2-yne + KMnO4 /H+ = Butanal -1- one