MCQ
For given compounds
The correct statement is
- ✓The most basic compound is $IV$
- BThe least basic compound is $I$
- CThe most basic compound is $III$
- DThe least basic compound is $IV$
The correct statement is
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$(a)$ How many $g$ orbital are present in the $g$ subshell ?
$(b)$ In what principal electronic shell whould the $g$ subshell first occur and what is the total number of orbitals in this principal shell ?
$(i)$ $\begin{gathered}
HCN\left( {aq} \right) + {H_2}O\left( l \right) \rightleftharpoons {H_3}{O^ + }\left( {aq} \right) + C{N^ - }\left( {aq} \right) \hfill \\
{K_a} = 6.2 \times {10^{ - 10}} \hfill \\
\end{gathered} $
$(ii)$ $\begin{gathered}
C{N^ - }\left( {aq} \right) + {H_2}O\left( l \right) \rightleftharpoons HCN\left( {aq} \right) + O{H^ - }\left( {aq} \right) \hfill \\
{K_b} = 1.6 \times {10^{ - 5}} \hfill \\
\end{gathered} $
These equilibria show the following order of the relative base strength