MCQ
In the given reactions identify the reagent A and reagent B


- A$A - CrO _3 \quad B- CrO _3$
- ✓$A - CrO _3 \quad B- CrO _2 Cl _2$
- C$A - CrO _2 Cl _2 \quad B- CrO _2 Cl _2$
- D$A - CrO _2 Cl _2 \quad B- CrO _3$


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$2Al{(s)}+6HCl{(aq)} \rightarrow 2Al^{^{3+}}{(aq)}+6Cl^-{(aq)} +3H_2{(g)}$
$\begin{array}{*{20}{c}}
{\,\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - CH = C{H_2}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,}
\end{array}\xrightarrow[{2.\,KOH - EtOH,\,heat}]{{1.\,HBr}}$
The major end product formed is :-


$N{H_4}HS(s) \rightleftharpoons N{H_3}(g) + H_2S(g)$
Predict the effect of adding the inert gas