The correct order of bond dissociation energy of halogens is-
1. F2 < Cl2 < Br2 < I2
2. I2 > Br2 > F2 > Cl2
3. Cl2 > Br2 < F2 > I2
4. I2 < F2 < Br2 < Cl2
The group which contains the strongest oxidizing agent is-
1. Group 15
2. Group 16
3. Group 17
4. Group 18
Halogen that forms only one oxoacid is :
1. Chlorine
2. Fluorine
3. Bromine
4. Iodine
Arrange the following compounds in increasing order of their acidity:
HF, HCl, HBr, HI
1. HCl < HBr < HI<HF
2. HF < HCl < HI< HBr
3. HF < HCl < HBr < HI
4. HF< HBr < HI< HCl
Fluorine forms only one oxoacid, HOF because of -
1. Low electronegativity and small size
2. High electronegativity and small size
3. High electronegativity and big size
4. Low electronegativity and big size
The uses of is /are-
1. It is used for purifying water
2. It is used as a bleaching agent
3. Both '1'and '2'
4. None of the above
Halogens are colored because -
1. They absorb radiations in the U.V region
2. They absorb radiations in the visible region
3. They absorb radiations in the infrared region
4. They absorb radiations in the radiowaves region
4HCl + O2 → X + 2H2O
Cl2 + H2O → HCl + Y ;
X and Y in the above reaction are respectively:
1. Cl2 , HOCl
2. HOCl ,Cl2
3. HClO3, HOCl
4. HOCl, HClO4
A neutral molecule that is isoelectronic with ClO- is -
1. ClF which is a Lewis base
2. ClF which is a Lewis acid
3. HCl which is a Lewis base
4. HCl which is a Lewis acid
The products formed by the reaction of F2 and Cl2 with water respectively are:
1. HF , HCl
2. H2F2 , HOCl
3. HF, HClO3
4. H2F2, HClO4