Which of the following is not the chain propagation step in the chlorination of alkane?

Which of the following is the chain termination step during photochlorination of ethane:

Explain chlorination of alkane .

Which of the following reaction pairs constitutes the chain propagation step in chlorination of methyl chloride ?

Which of the following is the correct sequence of steps in the halogenation of an alkane?

Which of the following steps represents chain terminating step in the mechanism of chlorination of methane ?