- (A) Xe
- (B) Kr
- (C) Rn
- (D) All of the above
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- (A) All are non-metals
- (B) All the halogens have electronic conviguration ns2p5
- (C) They have high electron attinity and ionization energy
- (D) All the halogens react with noble gases to form their halides
- (A) Fluorine
- (B) Chlorine
- (C) Bromine
- (D) Iodine
- (A) I2O4
- (B) I4O2
- (C) I2O5
- (D) All are equally useful
- (A) Normal salt
- (B) Double salt
- (C) Mixed salt
- (D) Complex
- (A) HCIO
- (B) HCIO2
- (C) HCIO3
- (D) HCIO4
- (A) ns2p2
- (B) ns2p4
- (C) ns2p5
- (D) ns2p6
- (A) propyne
- (B) 1-butyne
- (C) ethyne
- (D) all of the above
- (A) C2H6
- (B) C2H4
- (C) C2H2
- (D) CH4
- (A) nitration
- (B) halogenation
- (C) sulphonation
- (D) amination
