The Halogens and The Noble Gases

The anhydride of HCIO4 is_________________? A. Cl2O B. Cl2O6 C. ClO2D. Cl2O7

In which compound of Xenon the oxidation state of Xenon is + 6? A. XeF4B. XeOF4 C. XeOF2 D. Na4XeO6

Which of the following is the weakest reducing agent ? A. HF B. HBr C. HC D. HI

Fluorine can react with_________________? A. Xe B. Kr C. RnD. All of the above

Which of the following statements is incorrect about halogens ? A. All are non-metals B. All the halogens have electronic conviguration ns2p5 C. They have high electron attinity and ionization energyD. All the halogens react with noble gases to form their halides

Which of the halogen has highest electronegativity ? A. Fluorine B. Chlorine C. Bromine D. Iodine

Which of the following oxides of iodine is used for quantitative analysis of CO ? A. I2O4 B. I4O2C. I2O5 D. All are equally useful

Bleaching powder is an example of________________? A. Normal salt B. Double saltC. Mixed salt D. Complex

Which is the strongest acid ? A. HCIO B. HCIO2 C. HCIO3D. HCIO4

Which of the following represents the correct electronic configuration of VII A group elements in the ground state ? A. ns2p2 B. ns2p4C. ns2p5 D. ns2p6