Two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:Assertion (A): Following is a balanced chemical equation for the action of steam on iron : $3Fe + 4H_2O \rightarrow Fe_3O_4 + 4H_2$ Reason (R): The law of conservation of mass holds good for a chemical equation.(a) Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).(b) Both (A) and (R) are true, but (R) is not the correct explanation of the assertion (A).(c) (A) is true, but (R) is false.(d) (A) is false, but (R) is true.
Correct Answer: (a) Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).
Explanation: Law of conservation of mass states that mass can neither be created nor be destroyed in a chemical reaction. Assertion involves a balanced chemical equation, which has an equal number of moles of each element before and after the reaction.
Hence, Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).
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