MCQ
There is no $S - S$ bond in
- A${S_2}O_4^{2 - }$
- B${S_2}O_5^{2 - }$
- C${S_2}O_3^{2 - }$
- ✓${S_2}O_7^{2 - }$
$\begin{array}{*{20}{c}}
{O\,\,\,\,\,\,\,\,\,\,\,\,\,\,O} \\
{|\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,|} \\
{{}^ - O - S - O - S - {O^ - }} \\
{|\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,|} \\
{O\,\,\,\,\,\,\,\,\,\,\,\,O}
\end{array}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\mathrm{C}_{2} \mathrm{H}_{7} \mathrm{~N}+\left(2 \mathrm{x}+\frac{\mathrm{y}}{2}\right) \mathrm{CuO} \rightarrow \mathrm{x\,CO}_{2}+\frac{y}{2} \mathrm{H}_{2} \mathrm{O}+\frac{\mathrm{z}}{2} \mathrm{~N}_{2}+\left(2\, \mathrm{x}+\frac{\mathrm{y}}{2}\right) \mathrm{Cu}$
The value of $y$ is ...... .(Integer answer)