Question

please answer. it is an MCQ.​

Answer 1

Answer is c

Zinc cannot replace magnesium in magnesium sulphate.

because less reactive metal cannot replace high reactive metal.

Magnesium is high reactive metal than zinc.

hope this helps you

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Answer 2

Option (c) is the right option.

Zn has higher Reduction potential than Mg.

Metals with higher redn potential CANNOT displace metals with lower redn potential.