- (A) Nitrogen
- (B) Phosphorus
- (C) Carbon
- (D) Bismuth
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- (A) an acid
- (B) a dehydrating agent
- (C) an oxidizing agent
- (D) as sulphonating agent
- (A) Ferric hydroxide
- (B) Sodium hydroxide
- (C) Calcium hydroxide
- (D) Aluminium hydroxide
- (A) Electronic conviguration of valence shell electrons
- (B) Show allotropy
- (C) Polymeric
- (D) Show same oxidation state
- (A) ZnS
- (B) PbS
- (C) HgS
- (D) FeS
- (A) White
- (B) black
- (C) red
- (D) Violet
- (A) hygroscopic
- (B) metals
- (C) polymeric
- (D) all of above
- (A) N2O
- (B) NO2
- (C) HNO2
- (D) HNO3
- (A) Alkali
- (B) Acid
- (C) Water
- (D) Metals
- (A) N2O3
- (B) NO2
- (C) NO
- (D) N2O
