Consider these reactions and answer the questions listed below in each case:
`I. Zn + Pb Cl _(2) to P b + Z n Cl _(2)`
II. `Mg + Cl _(2) to Mg Cl _(2)`
III. `Cu + 4 HNO _(2) to Cu ( NO _(3)) _(2) + 2 NO _(2) + 2 H _(2)O`

Options

A. Which reactant is oxidised to what ?
B. Which reactant is oxidiser ?
C. Which reactant is reduced to what ?
D. Which reactant is reducer ?

Explanation

I
(a) Zn to `Zn Cl _(2)`
(b) `Pb Cl _(2)`
(c) `Pb Cl _(2)` to `Pb `
(d) Zn
II
(a) Mg to `Mg Cl _(2)`
(b) `Cl _(2)`
(c) `Cl _(2)` to `Mg Cl _(2)`
(d) Mg
III
(a) Cu to `Cu (NO _(3)) _(2)`
(b) `HNO_(3)`
(c) `HNO _(3)` to `NO _(2)`
(d)Cu