Methane is prepared in the laboratory by heating a mixture of sodium ethanoate with soda lime. The chemical constituent(s) of soda lime is/are?

A. Ca(OH)2 and NaOH
B. Na2CO3
C. NaCl
D. NaOH

Correct Answer:

Option A – Ca(OH)2 and NaOH

Explanation

Soda-lime is a mixture of caustic soda (NaOH) and lime water (Ca(OH)2).