- (A) S-block
- (B) P-block
- (C) d-block
- (D) f-block
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- (A) 2
- (B) 3
- (C) 4
- (D) 5
- (A) CaSO4
- (B) CaSO4.1/2H2O
- (C) CaSO4,2H2O
- (D) CaSO4.3H2O
- (A) CaO+ SiO2——> CaSiO3
- (B) 2FeS+3O2——–> 2Fe+ SO2
- (C) FeSiO3———> FeSiO3
- (D) Fe2O3+ 3CO——–> 2Fe+ 3CO2
- (A) Iron
- (B) Sodium
- (C) Silver
- (D) Zinc
- (A) PbS
- (B) HgS
- (C) AS2S3
- (D) FeS2
- (A) Bonding theory
- (B) Band theory
- (C) Antibondingtheory
- (D) π and σ bonding theory
- (A) Sp2
- (B) Sp3
- (C) Sp
- (D) dsp2
- (A) Trigonal bipyramidal
- (B) Linear
- (C) Square bipyramidal
- (D) Both A and C
- (A) V-shaped
- (B) Angular
- (C) Pyramidal
- (D) Triangular planer
