question_answer 85)

  Assertion (A): Combustion of 16 g of methane gives 18 g of water. Reason (R): In the combustion of methane, water is one of the products. (a) Both A and R are true but R is not the correct explanation of A. (b) A is true but R is false. (c) A is false but R is true. (d) Both A and R are false.

Answer:

  (c) \[\underset{16g}{\mathop{C{{H}_{4}}(g)}}\,+2{{O}_{2}}(g)\to C{{O}_{2}}(g)+\underset{36g}{\mathop{2{{H}_{2}}O(g)}}\,\] 16 g \[C{{H}_{4}}\] an complete combustion will give 36 g of water.