A hydrocarbon C_(5)H_(10) does not react with chlorine in dark but gives C_(5)H_(9)Cl in bright sunlight. Identify the hydrocarbon.

A hydrocarbon C_(5)H_(10) does not react with chlorine in dark but giv

1.	A hydrocarbon C_(5)H_(10) does not react with chlorine in dark but gives C_(5)H_(9)Cl in bright sunlight. Identify the hydrocarbon.
Answer» Solution :(i) `C_(5)H_(10)` can be either alkene or cyclo alkane. (ii) Since the hydrocarbon does ot react with CL in dark, hence it is not an alkene, it MAY be cyclopentane. (iii) Since, it forms only single monochloro derivative in BRIGHT sunlight, all the H-atoms should be identical. hence it is cyclopentane