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
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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. HF
B. HCI
C. HBr
D. HI
A. fluorine is restricted to -1 oxidation state
B. fluorine follows octet rule and as well as extended octet rule
C. fluorine has lowest dissociation energy among the halogens
D. both B and C
A. pale yellow
B. freenish yellow
C. reddish brown
D. grayish black
A. Cl2O7
B. Cl2O6
C. ClO2
D. all
