Question

(i)
Number of possible reactions out of the following is

Cu+ 2AgNO3---2Ag + Cu(NO3)2

Cu+ ZnSO4---CuSO4+ Zn

Mg+CuSO5---MgSO4+Cu

Zn + PbSO4--ZnSO4+ P

(ii)
The given reaction represents formation of iron form its oxide

Fe2O3+xC---2Fe + xCO
Here x is
​

Answer 1

Explanation:

Number of possible reactions out of the following is

Cu+ 2AgNO3---2Ag + Cu(NO3)2

Mg+CuSO5---MgSO4+Cu

Zn + PbSO4--ZnSO4+ Pb

Fe2O3+xC---2Fe + xCO

Here x is 3

Answer 2

1) three possibility are1,3,4

2)x=3