'X' overset(Ag//Delta)to 'Y' where if 'Y' is ethyne, X is.

1.	'X' overset(Ag//Delta)to 'Y' where if 'Y' is ethyne, X is.
Answer» `CH_3Cl` `CH_2Cl_2` `CHCl_3` `C Cl_4` SOLUTION :

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