1. Atomic number represents:
A. Neutrons
B. Protons
C. Electrons
D. Both B & C
2. p-block elements are:
A. Groups 1–2
B. Groups 13–18
C. Transition metals
D. Lanthanides
3. Oxidation number of O in H₂O₂:
A. -2
B. -1
C. 0
D. +1
4. Coordination number means:
A. No. of ligands
B. Bond length
C. Atomic mass
D. Valency
5. NaCl type crystal is:
A. FCC
B. BCC
C. HCP
D. Simple cubic
6. Strong acid example:
A. HCl
B. NH₃
C. CH₃COOH
D. H₂O
7. Chelation increases:
A. Stability
B. Reactivity
C. Size
D. Weight
8. Transition metals show:
A. Color
B. Variable oxidation states
C. Catalysis
D. All
9. Ligand donates:
A. Proton
B. Electron pair
C. Neutron
D. Ion
10. Hybridization of CH₄:
A. sp
B. sp²
C. sp³
D. dsp²
ANSWER
| 1-D | 2-B | 3-B | 4-A | 5-A |
|---|---|---|---|---|
| 6-A | 7-A | 8-D | 9-B | 10-C |
