Which of the following compounds is not chiral?
3-chloro-2-methyl pentane
2-chloropentane
1-chloro-2-methyl pentane
1-chloropentane
1-chloro pentane has no asymmetric carbon.
n - hexane X−→ 2 - methyl pentane+ 3 - methyl pentane. The name of the reaction and 'x' is