Question:
An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon $X$ is :
Correct Option: 3,
Solution:
As (A) compound given positive tollen's test hence it may consist-CHO (aldehyde group). or it can be $\mathrm{HCOOH}$
So for the given option :
and for other compounds (options):
