Which of the following compounds does not produce a green-coloured product on thermal decomposition?

$AgCl$ when heated with $Na_2CO_3$ gives:

Which of the following reactions does not involve either oxidation or reduction?
$I. \ 2Cs + 2H_2O \to 2CsOH + H_2$
$II. \ 2CuI_2 \to 2CuI + I_2$
$III. \ NH_4Br + KOH \to KBr + NH_3 + H_2O$
$IV. \ 4KCN + Fe(CN)_2 \to K_4[Fe(CN)_6]$

Reduction of the metal centre in aqueous permanganate ion involves the following processes:
$(A)$ $3$ electrons in neutral medium
$(B)$ $5$ electrons in neutral medium
$(C)$ $3$ electrons in alkaline medium
$(D)$ $5$ electrons in acidic medium
Which of the following combinations is correct?

Which of the following combinations does not evolve $Cl_2$ gas?

Which of the following reactions is $NOT$ an example of a redox reaction?