JEE Main 2021 (Online) 26th August Evening Shift | Coordination Compounds Question 65 | Chemistry

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JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)

-1

Indicate the complex/complex ion which did not show any geometrical isomerism :

[CoCl₂(en)₂]

[Co(CN)₅(NC)]^3$$-$$

[Co(NH₃)₃(NO₂)₃]

[Co(NH₃)₄Cl₂]⁺

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)

-1

Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value.

Complexes : $$\mathop {{{[Co{F_6}]}^{3 - }}}\limits_A ,\mathop {{{[Co{{({H_2}O)}_6}]}^{2 + }}}\limits_B ,\mathop {{{[Co{{(N{H_3})}_6}]}^{3 + }}}\limits_C and \mathop {{{[Co{{({en})}_3}]}^{3 + }}}\limits_D $$

Choose the correct option :

A < B < C < D

B < A < C < D

B < C < D < A

C < D < B < A

JEE Main 2021 (Online) 26th August Morning Shift

MCQ (Single Correct Answer)

-1

Which one of the following complexes is violet in colour?

[Fe(CN)₆]^4$$-$$

[Fe(SCN)₆]^4$$-$$

Fe₄[Fe(CN₆)]₃ . H₂O

[Fe(CN)₅NOS]^4$$-$$

JEE Main 2021 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements :

Statement I : $${[Mn{(CN)_6}]^{3 - }}$$, $${[Fe{(CN)_6}]^{3 - }}$$ and $${[Co{({C_2}{O_4})_3}]^{3 - }}$$ are d²sp³ hybridised.

Statement II : $${[MnCl)_6}{]^{3 - }}$$ and $${[Fe{F_6}]^{3 - }}$$ are paramagnetic and have 4 and 5 unpaired electrons, respectively.

In the light of the above statements, choose the correct answer from the options given below :

Statement I is correct but statement II is false

Both statement I and Statement II are false

Statement I is incorrect but statement II is true

Both statement I and statement II are true

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