A hydrocarbon (A) of the formula `C_(7)H_(12)` on ozonolysis gives a compound (B) which undergo aldol condensation giving 1-acetylcyclopentene. Identify (A) and (B).

Explanation

Since, the oonolysis of the hydrocarbons (A) gives only one compound (B), the compound (A) must be a cyclic alkene, Moreover since the number of C-atoms in the product obtained from the aldol condensation of (B) is the same as that of (A), the compound (B) must have gone aldol condensation. So, (A) and (B) are as follows: