MCQ
$Cu^+$ ion is not stable in aqueous solution, due to
- A$d^{10}$ configuration
- ✓disproportionation
- Cless charge
- Dpseudo inert gas configuration
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$A$. Tollen's reagent $B$. Schiff's reagent $C$. $\mathrm{HCN}$ $D$. $\mathrm{NH}_2 \mathrm{OH}$ $E$. $\mathrm{NaHSO}_3$
Choose the correct options from the given below:
Assertion $(A):$ The ionic radii of $O ^{2-}$ and $Mg ^{2+}$ are same.
Reason $( R )$ : Both $O ^{2-}$ and $Mg ^{2+}$ are isoelectronic species.
In the light of the above statements, choose the correct answer from the options given below
(Nearest integer)
Given, molar mass of $KCl$ is $74.5 g mol ^{-1}$
$A\xrightarrow{{{\text{Reduction}}}}B\xrightarrow{{HN{O_2}}}{C_2}{H_5}OH$