How will you convert calcium formate to methanal?

Q. How will you convert Calcium acetate to acetone?

Q. (i) Ethanal
(ii) Butanone
(iii) Methanal
(iv) Acetone
Among these how many can be formed when a mixture of calcium acetate and calcium formate is dry distilled

Q. How would you convert the following?
Acetic acid to Methane

Q. When a mixture of calcium acetate and calcium formate is dry distilled, How many possible product(s) formed between the following
(i) Ethanal
(ii) Butanone
(iii) Methanal
(iv) Acetone

Q.

How do you account for the formation of ethane during chlorination of methane?