Assertion : Atomic radius of gallium is higher than that of aluminium
Reason : The presence of additional $d-$ electron offer poor screening effect for the outer electrons from increased nuclear charge.
Assertion : Atomic radius of gallium is higher than that of aluminium
Reason : The presence of additional $d-$ electron offer poor screening effect for the outer electrons from increased nuclear charge.
- [AIIMS 2017]
- A
If the Assertion is correct but Reason is incorrect.
- B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- C
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- D
If both the Assertion and Reason are incorrect.
Similar Questions
Which reactions can be used to prepare diborane
$I.\,\,NaBH_4 + BF_3$ (in ether) $\to $
$II.\,\, NaBH_4 + I_2 \to $
$III.\,\, BF_3 + NaH \to $
Which reactions can be used to prepare diborane
$I.\,\,NaBH_4 + BF_3$ (in ether) $\to $
$II.\,\, NaBH_4 + I_2 \to $
$III.\,\, BF_3 + NaH \to $
Compare $\pi - $ bond strength between $B$ and $N$ given in two compounds
$(I)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}Si - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Si{{(C{H_3})}_3}}
\end{array}$ $(II)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}C - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{(C{H_3})}_3}}
\end{array}$
Compare $\pi - $ bond strength between $B$ and $N$ given in two compounds
$(I)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}Si - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Si{{(C{H_3})}_3}}
\end{array}$ $(II)$ $\begin{array}{*{20}{c}}
{{{\left( {C{H_3}} \right)}_3}C - NB{H_2}}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|}\\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{{(C{H_3})}_3}}
\end{array}$
The possible oxidation state of $Tl$ are
The possible oxidation state of $Tl$ are
Which of the statements about anhydrous aluminium chloride is correct
Which of the statements about anhydrous aluminium chloride is correct
- [IIT 1981]
How many different types of $OBO$ angles are there in sodium peroxoborate ?
How many different types of $OBO$ angles are there in sodium peroxoborate ?