In which of the following reaction, a vi...

In which of the following reaction, a visible change would be observed?

A

1-butene + HCl (aq) `to`

B

2-butene + `Cl_2 underset(FeCl_3)overset(C Cl_4)to`

C

1-pentyne + `HgSO_4 overset(H_2SO_4)to`

D

1-pentyne + `NaNH_2(aq)to`

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The correct Answer is:

D

Terminal alkyne react with `NaNH_2` giving effervescence of `NH_3`

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