The oxidation number of Ba in barium peroxide is :
1. +6
2. +2
3. 1
4. +4
Maximum oxidation state of Cr is :
1. 3
2. 4
3. 6
4. 7
The oxidation number of Cr in is:
1. +6
2. -7
3. +2
4. -2
Oxidation state of oxygen in hydrogen peroxide is :
1. -1
2. +1
3. 0
4. -2
Which of the following is the most powerful oxidizing agent ?
1.
2.
3.
4.
Nitrogen show different oxidation states in the range :
1. 0 to +5
2. -3 to +5
3. -5 to +3
4. -3 to +3
How many moles of can be reduced 1 mole of ?\
1. 1/3
2. 1/6
3. 2/3
4. 1
(1 mole ) in neutral aqueous medium is disproportionate to :
1. 2/3 mole of and 1/3 mole of
2. 1/3 mole of and 2/3 mole of
3. 1/3 mole of and 1/3 mole of
4. 2/3 mole of and 1/3 mole of
The oxidation number of oxygen in is respectively -
1. 3, and 2
2. 1, and 0
3. 0, and 1
4. -0.33, and -1