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प्रश्न
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.
पर्याय
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
Both A and R are false.
उत्तर
A is false but R is true.
Explanation:
The combustion reaction of methane is given below.
\[\ce{CH4 + O2 -> CO2 + 2H2O}\]
In this reaction, water and carbon dioxide are formed.
1 mole of methane gives 2 moles of water. So, 16 g of methane gives 36 g of water.
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