MCQ
Which one of the following paramagnetic in nature?
- ✓$\ce{CuCl_2}$
- B$\ce{CaCl_2}$
- C$\ce{CdCl_2}$
- DAll of these.
✓
Answer
Correct option: A.
$\ce{CuCl_2}$
In $\ce{CuCl_2}, Cu$ is in $+2$ oxidation state. Electronic configuration of $\ce{Cu^{2+}}$ is $\ce{[Ar],3d^9},$ and is coloured and paramagnetic due to presence of an unpaired electron in the $3d$ sub$-$orbital.
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
Which of the following compounds responds to both iodoform test and Fehling’s Test?
The number of optically active products obtained from the complete ozonolysis of the given compound is:
Given below are two statements, one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
→Assertion $A$ : A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous generates chiral carbon atom.
Reason $R$ : A molecule with 2 chiral carbons is always optically active.
In the light of the above statements, choose the correct answer from the options given below:
Given are cyclohexanol $(I),$ acetic acid $(II),$ $2,4,6-$trinitrophenol $(III)$ and phenol $(IV).$ In these the order of decreasing acidic character will be
→Which describes the best stereochemical aspects of the following reaction ?
Which one of the following compounds in aqueous solution gives a white precipitate with perchloric acid
Sulphonation of benzoic acid produces mainly
$NH_3 + CO_2 + H_2O \to A$
→$A + H_2O + CO_2 \to B$
$B + NaCl \to C + NH_4Cl$
$C\xrightarrow{\Delta }D + {H_2}O + C{O_2}$
Incorrect statement is
Which reaction among the following is correct
Which of the following combinations can be used for the preparation of cis vic diol?