MCQ
Identify the correct option
- A$V_2O_5$ reacts with alkalies as well as acids
- BIn Misch metal $S, C, Ca$ and $Al$ present in traces amount with $Ce$
- C$2C{u^ + }\xrightarrow{{aq.}}C{u^ + }^2 + Cu$
- ✓All of the above are correct
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$(A)$ The number of $Cl = O$ bonds in $(ii)$ and $(iii)$ together is two
$(B)$ The number of lone pairs of electrons on $Cl$ in $(ii)$ and $(iii)$ together is three
$(C)$ The hybridization of $Cl$ in $(iv)$ is $sp ^3$
$(D)$ Amongst $(i)$ to $(iv)$, the strongest acid is $(i)$
| Column $I$ | Column $II$ |
| $(A)$ $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CHO}$ | $(p)$ gives precipitate with $2, 4$-dinitrophenylhydrazine |
| $(B)$ $\mathrm{CH}_3 \mathrm{C} \equiv \mathrm{CH}$ | $(q)$ gives precipitate with $\mathrm{AgNO}_3$ |
| $(C)$ $\mathrm{CN}^{-}$ | $(r)$ is a nucleophile |
| $(D)$ $\mathrm{I}^{-}$ | $(s)$ is involved in cyanohydrin formation |

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