The oxidation number of Cl in CaOCl2
is
1. Zero
2. –1
3. +1
4. –1 as well as +1
In the conversion, HSO HSOwhich process occurs?
1. Oxidation
2. Reduction
3. Oxidation as well as reduction
4. Neither oxidation nor reduction
Which acts as reducing agent only?
1. SO
2. HSO
3. HS
4. HNO
In the reaction, 2 Cu Cu + Cu, the equivalent weight of Cu is (M is the mol. wt. of Cu)
1.
2.
3.
4.
The oxidation number of S in NaSO is
1. 2.5
2. +2 and +3
3. Zero and +5
4. +1 and +4
For the reaction, , how many moles of and are obtained after the disproportionation of one mole of respectively?
1. and
2. and
3. and
4. and
How many moles of are required to oxidise one mole of in acidic medium?
1. 6
2. 1/2
3.
4.
is strong oxidising agent in acidic medium. To provide acidic medium, is used instead of HCl. This is because
1. is stronger acid than HCl
2. HCl is oxidised by to
3. is dibasic acid
4. Rate is faster in the presence of
The stoichiometric coefficient of S in the
following reaction
is
balanced (In acidic medium)
1. 1
2. 2
3. 3
4. 4
Equal volumes of 1M each of KMnO and are used to oxidise Fe(II) solution in acidic medium.
The amount of Fe oxidised will be
1. More with KMnO
2. More with
3. Equal with both oxidising agent
4. Cannot be determined
The oxidation number of Pt in is:
1. +1
2. +2
3. +3
4. +4
Oxidation state of nitrogen is incorrectly given
for:
Compound Oxidation State
1. -3
2. -1
3. +2
4. -3
A, B and C are three elements forming a part of
compound in oxidation states of +2, +5 and –2
respectively. What could be the compounds?
1.
2.
3.
4. ABC
Consider the following reaction :
The values of x, y and z in the reaction are
respectively :
1. 2, 5 and 16
2. 5, 2 and 8
3. 5, 2 and 16
4. 2, 5 and 8
The difference in the oxidation number of the
two types of sulphur atoms in is :
1. 4
2. 5
3. 6
4. 7