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Halogens and Noble Gases - 3
1.
Radon is used in radiotherapy for cancer and for ________________.
a) XeOF
4
b) Radio active decay
c) Anesthetic
d) Earth quake prediction
2.
Numerous antiseptics, insecticides, weed killers and herbicides are manufactured from ____________.
a) Hydrofluoric acid
b) Carbonmonoxide
c) Chlorine
d) Bleaching powder
3.
Helium is present on the earth as a result of _______________.
a) Radio active decay
b) Explosive
c) Anesthetic
d) Earth quake prediction
4.
Oxides of ___________ are dark volatile liquids with low thermal stability.
a) Anesthetic
b) Bromine
c) Chlorine
d) Bleaching powder
5.
Which one of the following is the most powerful oxidizing agent.
a) Cl
2
b) F
2
c) Br
2
d) I
2
6.
Which is the strongest acid
a) HF
b) HCl
c) HI
d) HBr
7.
Common oxyacids are arbitrarily named as
a) -ic acid
b) per-ic acid
c) ous acid
d) Hypo-ous acid
8.
The factor which does not effect the oxidizing power of a halogen is
a) Heat of hydration
b) ionization potential
c) Electron affinity
d) Energy of dissociation
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