Question

A chemistry lab incharge kept zinc metal in feso4 solution observe after sometime green ferrous sulphate turns to colourless and some brown powder is deposited on zinc. In the above reaction zinc metal acts as ​

Answer 1

In the above reaction, zinc metal acts as a reducing agent. Thus, the correction is (b) Reducing agent.

Explanation:

• When zinc metal is kept in the solution of ferrous sulphate, the colour of ferrous sulphate solution changes from green to colourless.  
• It is also observed that a brown-coloured powder gets deposited on the zinc metal.  
• This happens because zinc metal is more reactive than iron. Therefore, it has the ability to displace iron from its salt solution.  
• In the above reaction, zinc metal displaces iron from ferrous sulphate to form zinc sulphate and iron.  
• The reaction can be given as: $\[Zn + FeS{O_4} \to ZnS{O_4} + Fe\]$
• The brown-coloured powder deposited on zinc must be iron.  
• In the reaction, the oxidation number of zinc metal increases from 0 to +2. It means zinc undergoes oxidation.  
• Thus, it acts as a reducing agent.