64.

65.

66.

67.

68.

69.

70.

71.

72.

Which is the reason 17൦. (00), being diamagnetic?

(A) Presence of the CO as bridge group
(B) Presence of Monodentate ligand

(0) Metal-Metal (Fe - Fe) bond in molecule

(D) Resonance hybridisation of CO
Geometrical isomerism is exhibited by :

(^) மய) ப] ®)

൭ [Cu(NHs),}* (0)

The degree of
stability of the complex in solution.
(A) Association (8)
(0) 1001880100 ൬)

Actinides have higher tendancy to form complexes than

(A)
(C) They are radioactive

Smaller charge and larger size (B)
(0)

isa Z diamensional nanomaterial.

Zn (NH; ‏و‎ யே]
Co(NH3),C1P*

between the metal ion and the ligand directly influences the

Dissociation
Freedom

lanthanides, due 10 :
Higher charge and smaller size
They are electropositive

Quantum wire
Carbon nanotube

C,H; CHO
(CH,), COH

Which of the following is an example of top down approach of synthesis of the nanomaterials?

Chemical Vapour Deposition
None of these

Composites

(ಯ) Quantum dot (8)
(C) Quantum well (D)
Reaction with CH3CN with CH3MgI excess will finally result in the formation of :
(A) CH; CHO (8)
(0) CH;CO CH; (D)
(^) Physical Vapour Deposition (8)
(C) Sputtering ൬)
Nanosized polymer built from branched units are called :
(ಹ) Dendrimers (B)
(C) Carbon based materials

(D) Metal based materials

Regarding nanomaterials, consider the following statements :
(1) They have reduced imperfection compared to the bulk material

(2) They are used in fuel cells
(8) They have high surface energy

(4) They have a large fraction of surface atoms

Out of these statements
(^) (1), (2), (8), (4) are correct
(C) (1), (2), (4) are correct

13

(B)
(2)

(1), (2), (8) are correct
(2), (8), (4) are correct

044/2022
[P.T.0.]