JEE Main 2022 (Online) 28th July Evening Shift | Coordination Compounds Question 88 | Chemistry

	List - I (Complex)		List - II (Hybridization)
(A)	$$Ni{(CO)_4}$$	(I)	$$s{p^3}$$
(B)	$${[Ni{(CN)_4}]^{2 - }}$$	(II)	$$s{p^3}{d^2}$$
(C)	$${[Co{(CN)_6}]^{3 - }}$$	(III)	$${d^2}s{p^3}$$
(D)	$${[Co{F_6}]^{3 - }}$$	(IV)	$$ds{p^2}$$

Choose the correct answer from the options given below :

A-IV, B-I, C-III, D-II

A-I, B-IV, C-III, D-II

A-I, B-IV, C-II, D-III

A-IV, B-I, C-II, D-III

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

Low oxidation state of metals in their complexes are common when ligands :

have good $$\pi$$-accepting character

have good $$\sigma$$-donor character

are having good $$\pi$$-donating ability

are having poor $$\sigma$$-donating ability

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

$$\mathrm{Fe}^{3+}$$ cation gives a prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of :

$$\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]_{2}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$$

$$\mathrm{Fe}_{2}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{2}$$

$$\mathrm{Fe}_{3}\left[\mathrm{Fe}(\mathrm{OH})_{2}(\mathrm{CN})_{4}\right]_{2}$$

$$\mathrm{Fe}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]_{3}$$

JEE Main 2022 (Online) 26th July Evening Shift

MCQ (Single Correct Answer)

-1

The metal complex that is diamagnetic is (Atomic number: $$\mathrm{Fe}, 26 ; \mathrm{Cu}, 29)$$

$$\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]$$

$$\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]$$

$$\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{4}\right]$$

$$\mathrm{K}_{4}\left[\mathrm{FeCl}_{6}\right]$$

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