Cracking of propane is expected to yield

Crack is

Crack is

Crack is

Cracking of ethane gives mixture of

Which of the following species is expected to yield maximum percentage of meta substitution product.

Nitration of propane with nitric acid vapor at about 430^(@)C is expected to yield (i) 1 -nitropropane (ii) 2 -nitropropane (iii) nitroethane (iv) nitromethane

Cracking of alkanes involves