Question

A magnesium strip is added to zinc sulphate solution. This is a: A chemical and irreversible change B. physical and irreversible change c chemical and reversible change D. physical and reversible change​

Answer 1

Answer:

A chemical and irreversible change

Answer 2

The reaction in which a Magnesium strip is added to the zinc sulphate solution is (a) Chemical and irreversible change.

Explanation:

• When a magnesium strip is added to zinc sulphate solution, it will react to form magnesium sulphate.
• Then zinc will be separated out because magnesium is more reactive than zinc.
• Magnesium has a higher tendency to form positive ions than zinc.
• Magnesium can lose electrons more easily.
• And zinc is able to lose its outer electrons readily but less than magnesium.
• The chemical reaction involved in this reaction is:

$Mg+ZnSO_{4}$ →$MgSO_{4} +Zn$