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प्रश्न
Assertion (A): Reactive metals like calcium, magnesium cannot be obtained by reduction.
Reason (R): Reactive metals have a great affinity towards oxygen.
पर्याय
Both A and R are true and R is the correct explanation of A.
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.
MCQ
विधान आणि तर्क
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उत्तर
Both A and R are true and R is the correct explanation of A.
Explanation:
Reactive metals like calcium and magnesium have a great affinity for oxygen, making their oxides very stable and difficult to reduce by common reducing agents. Hence both are true and R correctly explains why electrolytic reduction is used.
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