MCQ
The inverse of resistance is :
- AResistivity
- ✓Conductance
- CCell constant
- DConductivity
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$B + {H_2}O \to C + HCl$
Compound $(A),\,(B)$ and $(C)$ will be respectively

$(I)$ The principal reducing product is $NO$ gas
$(II)$ $Cu$ metal is oxidised to $Cu^{2+}$ ( aq.) ion which is blue in colour.
$(III)$ $NO$ is paramagnetic and has one unpaired electron in antibonding molecular orbital
$(IV)$ $NO$ reacts with $O_2$ to produce $NO_2$ which is linear in shape
Choose the correct statements
image$\mathop {\xrightarrow{{NaN{O_2}}}}\limits_{HCl} A\,\,\xrightarrow{{CuCN}}B\,\,\mathop {\xrightarrow{{{H_2}}}}\limits_{Ni} C\,\,\xrightarrow{{HN{O_2}}}D$