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 of the following statement is not correct about diborane?
Which of the following statement is not correct about diborane?
- [NEET 2022]
What is not true about borax ?
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$BF_3$ on hydrolysis forms
$BF_3$ on hydrolysis forms
The number of $2-$ centre $-2-$ electron and $3-$ centre $-2-$ electron bonds in $B_2H_6$, respectively, are
The number of $2-$ centre $-2-$ electron and $3-$ centre $-2-$ electron bonds in $B_2H_6$, respectively, are
- [JEE MAIN 2019]
$(i)\,Al\,\xrightarrow{{{N_2}}}\,A$ $(ii)\,Al\,\xrightarrow{c}\,B$
Here $A$ and $B$ on hydrolysis respectively gives
$(i)\,Al\,\xrightarrow{{{N_2}}}\,A$ $(ii)\,Al\,\xrightarrow{c}\,B$
Here $A$ and $B$ on hydrolysis respectively gives