Among $[N i (C O)_{4}],$ $N i C l_{4}]^{2 -}$ , $[C o (N H_{3})_{4} C l_{2}] C l$ , $N a_{3} [C o F_{6}],$ $N a_{2} O_{2}$ and $C s O_{2}$ , the total number of paramagnetic compounds is:

2

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3

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Solution

The correct option is B $3$
$\begin{matrix} [N i (C O)_{4}] & 3 d^{10}, s p^{3} & 0 unpaired electron [N i C l_{4}]^{2 -} & 3 d^{8}, s p^{3} & 2 [C o (N H_{3})_{4} C l_{2}] C l & 3 d^{6}, d^{2} s p^{3} & 0 N a_{3} [C o F_{6}] & 3 d^{6}, s p^{3} d^{2} & 4 N a_{2} O_{2} & O_{2}^{2 -} & 0 C s O_{2} & O_{2}^{-} & 1 \end{matrix}$

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Similar questions

Q. Among

[N i (C O)_{4}]

[N i C l_{4}]^{2 -}

[C o (N H_{3})_{4} C l_{2}] C l

N a_{3} [C o F_{6}]

N a_{2} O_{2}

and

C s O_{2}

, the total number of paramagnetic compounds are:

Among $[N i (C o)_{4}], [N i C l_{4}]^{2 -}, [C o (N H_{3})_{4} C l_{2}] C l, N a_{2} [C o F_{6}]^{3 +}, N a_{2} O_{2} a n d C s O_{2},$ the total number of paramagnetic compounds is

Q. Among

[N i (C O)_{4},, [N i C l_{4}]^{2 -}, [C o (N H_{2}), C l_{2}] C l, N a_{3} [C o F_{6}], N a_{2} O_{2} and C s O_{2} .]

the total number of paramagnetic compound is

The following complexex are given:
(1) $t r a n s - [C o (N H_{3})_{4} C l_{2}]^{+}$
(2) $c i s - [C o (N H_{3})_{2} (e n)_{2}]^{3 +}$
(3) $t r a n s - [C o (N H_{3})_{2} (e n)_{2}]^{3 +}$
(4) $[N i C l_{4}]^{2 -}$
(5) $[T i F_{6}]^{2 -}$
(6) $[C o F_{6}]^{3 -}$
Choose the correct code:

Q. Amongst

[N i C l_{4}]^{2 -}, [N i (H_{2} O)_{6}]^{2 +}, [N i (P P h_{3})_{2} C l_{2}], [N i (C O)_{4}]

and

[N i (C N)_{4}]^{2 -}

, the paramagnetic species are :

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Among [Ni(CO)4], NiCl4]2−, [Co(NH3)4Cl2]Cl, Na3[CoF6], Na2O2 and CsO2, the total number of paramagnetic compounds is:

The correct option is B 3[Ni(CO)4]3d10,sp30unpaired electron[NiCl4]2−3d8,sp32[Co(NH3)4Cl2]Cl3d6,d2sp30Na3[CoF6]3d6,sp3d24Na2O2O2−20CsO2O−21

Among $[N i (C O)_{4}],$ $N i C l_{4}]^{2 -}$ , $[C o (N H_{3})_{4} C l_{2}] C l$ , $N a_{3} [C o F_{6}],$ $N a_{2} O_{2}$ and $C s O_{2}$ , the total number of paramagnetic compounds is: