This is a hydrogenation and carbene addition problem. How do I draw the structure of the major organic product of the reaction?

how many structurally isomeric products form in the free radical bromination of hexane?

Refer to the reaction energy diagram to answer parts (a) through (e). (a) The rate-limiting step is: ______.  (b) The transition state for the fastest step is: _____. (c) In the third step which intermediate structurally resembles the transition state according to the Hammond postulate? _____. (d) Which step no. is endergonic? _____. (e) The number of intermediates in the overall reaction is: _____.

a) Write the name of three steps of free-radical halogenation of methane?b) Give the mechanism of formation of dichloromethane from chloromethane?c) Explain why free-radical halogenation usually gives mixture of products.