Question

Compound X and Y are constitutional isomers with molecular formula C5H10. Compound X possesses a
carbon-carbon double bond in the TRANS configuration, while compound Y possesses a carbon-carbon
double bond that is not stereoisomeric. Total different possible structures for compound Y are :

Answer 1

Answer:See image below

Explanation:You can start by drawing molecules taking into account the following factors:

It has a (just 1) double bond

The substituents of a carbon in the alkene cannot be same

There must be at least a different substituent different from H in a carbon of the single bond

Then the initial molecule should be ethylene, and we have 3 missing carbons, 2 of them would let us follow the 3rd rule and we have the 2-Butene and we are missing 1 carbon, that atom cannot be as a substituent of any carbon forming the double bond because there wouldnt be any stereoisomers, then it should be connected with a substituent carbon giving us the 2-Pentene