MCQ
Which statement is not true
- A$He$ shows minimum boiling point among all zero gases
- B$S-S$ bond is not present in Marshall's acid
- ✓Producer gas is a mixture of $CO + N_2$
- D$HCl$ is liquid at room temperature

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Given : $K _{ sp } Cu ( OH )_2=1 \times 10^{-20}$
$\operatorname{Take} \frac{2.303 RT }{ F }=0.059 \,V$
The reduction potential at $pH =14$ for the above couple is $(-) x \times 10^{-2}\,V$. The value of $x$ is $........$.

$(A)$ $\mathrm{N}_2 \mathrm{O}$ $(B)$ $\mathrm{N}_2 \mathrm{O}_3$ $(C)$ $\mathrm{N}_2 \mathrm{O}_4$ $(D)$ $\mathrm{N}_2 \mathrm{O}_5$
