MCQ
Which of the following has highest paramagnetic character
- ✓$Mn$ $(II)$
- B$Fe$ $(II)$
- C$Co$ $(II)$
- D$Ni$ $(II)$
✓
Answer
Correct option: A.
$Mn$ $(II)$
a
(a) $M{n^{ + 2}}\, - \,3{d^5}$
(a) $M{n^{ + 2}}\, - \,3{d^5}$
$5$ unpaired element in $d-$ subshell so it has highest paramagnetic.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Super alloys are usually
The above reaction is know as :-
When $CH_3CH_2CH_2CHCl_2$ is treated with $2\, gram$ equivalent $NaNH_2$, the product formed is
→$cis-3$ -hexene $\xrightarrow{(a)}$ meso $3,4-$ hexanediol
→$trans-3$ -hexene $\xrightarrow{(b)}$ meso $3,4-$ hexanediol
Choose pair of reagent $(a, b)$ for above conversions
Given below are two statements:
Statement (I): A solution of $\left[ Ni \left( H _2 O \right)_6\right]^{2+}$ is green in colour.
Statement (II): A solution of $\left[ Ni ( CN )_4\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below:
→Statement (I): A solution of $\left[ Ni \left( H _2 O \right)_6\right]^{2+}$ is green in colour.
Statement (II): A solution of $\left[ Ni ( CN )_4\right]^{2-}$ is colourless.
In the light of the above statements, choose the most appropriate answer from the options given below:
Which carbocation is the most stable ?
The reaction is an example of $C{H_4} + C{l_2} \xrightarrow{uv \,light} \mathop {}\limits_{} C{H_3}Cl + HCl$ is an exmple of
→The compound most reactive towards $S _{ N } 1$ reaction is :
→A weak acid HA has degree of dissociation $x$. Which option gives the correct expression of $\mathrm{pH}=\mathrm{pK}_{\mathrm{a}}$ ) ?
→The $IUPAC$ name of given is :
→