1
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which statement is not true with respect to nitrate ion test?

A
A dark brown ring is formed at the junction of two solutions.
B
Ring is formed due to nitroferrous sulphate complex.
C
The brown complex is [Fe(H2O)5 (NO)]SO4.
D
Heating the nitrate salt with conc. H2SO4, light brown fumes are evolved.
2
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Transition metal complex with highest value of crystal field splitting ($$\Delta$$0) will be :

A
[Cr(H2O)6]3+
B
[Mo(H2O)6]3+
C
[Fe(H2O)6]3+
D
[Os(H2O)6]3+
3
JEE Main 2022 (Online) 24th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II :

List - I List -II
(A) $${[PtC{l_4}]^{2 - }}$$ (I) $$s{p^3}d$$
(B) $$Br{F_5}$$ (II) $${d^2}s{p^3}$$
(C) $$PC{l_5}$$ (III) $$ds{p^2}$$
(D) $${[Co{(N{H_3})_6}]^{3 + }}$$ (IV) $$s{p^3}{d^2}$$

Choose the most appropriate answer from the options given below :

A
(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
B
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
C
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
D
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
4
JEE Main 2021 (Online) 1st September Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The Crystal Field Stabilization Energy (CFSE) and magnetic moment (spin-only) of an octahedral aqua complex of a metal ion (Mz+) are $$-$$0.8 $$\Delta$$0 and 3.87 BM, respectively. Identify (Mz+) :
A
V3+
B
Cr3+
C
Mn4+
D
Co2+
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