1. ⇒ (MHT CET 2023 12th May Evening Shift )

What is the number of moles of donor atoms in n mole of NO: $_{2}^{-}$ ?

A. 3n

B. 0

C. 2n

D. n

Correct Option is (C)

The ligand ${NO}_{2}^{-}$ links to metal ion through nitrogen or oxygen. Hence, there are two donor atoms per molecule and $2 n$ moles donor atoms per n mole.

2. ⇒ (MHT CET 2023 12th May Evening Shift )

What type of ligand the EDTA is?

A. Monodentate

B. Bidentate

C. Tetradentate

D. Hexadentate

Correct Option is (D)

Currently no explanation available

3. ⇒ (MHT CET 2023 12th May Morning Shift )

Which from following is a neutral ligand?

A. Aqua

B. Sulphato

C. Carbonato

D. Bromo

Correct Option is (A)

Currently no explanation available

4. ⇒ (MHT CET 2023 11th May Morning Shift )

What is total number of donor atoms in $[Co (H_{2} O) {({NH}_{3})}_{5}] I_{3}$ ?

A. 5

B. 9

C. 6

D. 3

Correct Option is (C)

In $[Co (H_{2} O) {({NH}_{3})}_{5}] I_{3}$ , five ammonia molecules and one water molecule, that is, total six ligands are attached to cobalt ion. All these ligands are monodentate since each has only one donor atom. Therefore, there are six donor atoms in the complex.

5. ⇒ (MHT CET 2023 10th May Evening Shift )

What type of ligand does the ethylenediamine is?

A. Monodentate

B. Bidentate

C. Tetradentate

D. Hexadentate

Correct Option is (B)

Ethylenediamine is a bidentate ligand. This means it has two donor atoms, which in the case of ethylenediamine, are the two nitrogen atoms. Each of these nitrogen atoms has a lone pair of electrons that can be donated to a central metal ion in a coordination complex. Therefore, the correct option is :

Option B : Bidentate

⇒Coordination_compound