- (A) Size of orbitals
- (B) Shape of orbitals
- (C) Orientation of orbitals
- (D) All of the above
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- (A) 2 R
- (B) R/2
- (C) 3R/4
- (D) R/4
- (A) 1000 to 300 A°
- (B) 3800 to 7600 A°
- (C) 8000 to 10,000 A°
- (D) 12,000 to 15,000 A°
- (A) Fe>Co> Ni
- (B) Co > Ni > Fe
- (C) Ni> Co> Fe
- (D) Co >Fe>Ni
- (A) Gold foils
- (B) Barium sulphate
- (C) Zinc sulphide screen
- (D) Thin Aluminium sheet
- (A) 0.115
- (B) 0.900
- (C) 0.015
- (D) 0.215
- (A) S-Block
- (B) P-Block
- (C) d-Block
- (D) f-Block
- (A) 1
- (B) 2
- (C) 14
- (D) 18
- (A) Li, Be, B
- (B) F, Cl, Br
- (C) Cl, Br, I
- (D) Na, K, Rb
- (A) CO2
- (B) CH3CHO
- (C) COC2
- (D) HCN
