Q4. 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. (i) Both A and R are true but R is not the correct explanation of A. (ii) A is true but R is false. (iii) A is false but R is true. (iv) Both A and R are false.
Answer. Correct Option is (iii) A is false but R is true. CH4 + O2 → CO2 + 2H2O Water is produced during the combustion of methane, but 16 g of methane on complete combustion gives 36 g of water.