1.

Statement (A) : Zinc will free Cu metal from copper sulphate solution. Reason (R) : At 288 K temperature, E_(Zn^(2+)|Zn)^(@)=-0.76 volt and E_(Cu^(2+)|Cu)^(@)=0.34 Volt

Answer»

Both STATEMENT and reasons are true. And REASON is correct explanation of statement.
Both statement and reasons are true, but reason is not the correct explanation of statement.
But reason is not correct explanation of statement. (Statement is true but reason is false).
Statement si false but reason is true.

Solution :`Zn_((S))+Cu_((aq))^(2+) to Zn_((aq))^(2+)+Cu_((S))`
`E_(Cu^(2+)|Cu)^(@)=0.34V,E_(Zn^(2+)|Zn)^(@)=-0.76V`
From the above VALUE it can be shown that zinc liberated ELECTRON and reduction of copper occur.


Discussion

No Comment Found

Related InterviewSolutions