Which of the following can undergo a chemical reaction ? [NCERT Exemplar Problems]
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
Which of the following can undergo a chemical reaction ? [NCERT Exemplar Problems]
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe










