MCQ
Oxidation involves
- ✓Loss of electrons
- BGain of electrons
- CIncrease in the valency of negative part
- DDecrease in the valency of positive part
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Product of the above reaction is
$[Br^-] = [Cl^-] = [CO_3^{2-} ] = [AsO_4^{3-}] = 0.1\,M$.
Which compound will precipitate with lowest $[Ag^+]$ ?

$(A)\,ZnO + Na_2O\rightarrow Na_2ZnO_2$
$(B)\,ZnO + CO_2\rightarrow ZnCO_3$