1
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

Which of the following statements is incorrect?

A
$${[V{F_6}]^{3 - }}$$ is paramagnetic with 2 unpaired electrons.
B
$${[CuC{l_4}]^{2 - }}$$ is paramagnetic with 1 unpaired electron.
C
$${[Co{(N{H_3})_6}]^{3 + }}$$ is diamagnetic
D
$${[Co{F_6}]^{3 - }}$$ is paramagnetic with 2 unpaired electrons.
2
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

The calculated spin-only magnetic moment values in BM for $$\mathrm{[FeCl_4]^-}$$ and $$\mathrm{[Fe(CN)_6]^{3-}}$$ are

A
5.9 BM, 1.732 BM
B
4.89 BM, 1.732 BM
C
3.87 BM, 1.732 BM
D
1.732 BM, 2.82 BM
3
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

$$\mathrm{BrF_3}$$ self ionises as following

A
$$\mathrm{2BrF_3\rightleftharpoons BrF^+ + BrF_5^-}$$
B
$$\mathrm{2BrF_3\rightleftharpoons BrF_2^+ + BrF_4^-}$$
C
$$\mathrm{2BrF_3\rightleftharpoons BrF_4^+ + BrF_2^-}$$
D
$$\mathrm{2BrF_3\rightleftharpoons BrF_3^+ + BrF_3^-}$$
4
WB JEE 2023
MCQ (Single Correct Answer)
+1
-0.25
Change Language

4f$$^2$$ electronic configuration is found in

A
Pr
B
Pr$$^{3+}$$
C
Nd$$^{3+}$$
D
Pm$$^{3+}$$
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12