The oxidation number of Cr in K2Cr2O7 is:

1. +6

2. -7

3. +2

4. -2

Subtopic:  Oxidizing & Reducing Agents |
 94%
From NCERT
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Oxidation state of oxygen in hydrogen peroxide is :

1. -1

2. +1

3. 0

4. -2

Subtopic:  Oxidizing & Reducing Agents |
 83%
From NCERT
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2MnO4-+5H2O2+6H+2 Z+5O2+8H2O. In this reaction Z is :

1. Mn2+

2. Mn4+

3. MnO2

4. Mn

Subtopic:  Balancing of Equations |
 77%
From NCERT
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Which of the following is the most powerful oxidizing agent ?

1. F2

2. Cl2

3. Br2

4. I2

Subtopic:  Oxidizing & Reducing Agents |
 84%
From NCERT
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Nitrogen show different oxidation states in the range :

1. 0 to +5

2. -3 to +5

3. -5 to +3

4. -3 to +3

Subtopic:  Oxidizing & Reducing Agents |
 81%
From NCERT
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How many moles of K2Cr2O7 can be reduced 1 mole of Sn2+?\

1.  1/3

2. 1/6

3. 2/3

4. 1

Subtopic:  Equivalent Weight |
 60%
From NCERT
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MnO42- (1 mole ) in neutral aqueous medium is disproportionate to :

1. 2/3 mole of MnO4- and 1/3 mole of MnO2

2. 1/3 mole of MnO4- and 2/3 mole of MnO2

3. 1/3 mole of Mn2O7 and 1/3 mole of MnO2

4. 2/3 mole of Mn2O7 and 1/3 mole of MnO2

Subtopic:  Balancing of Equations | Redox Titration & Type of Redox |
 57%
From NCERT
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The oxidation number of oxygen in KO3 and Na2O2 is respectively -

1. 3, and 2
2. 1, and 0
3. 0, and 1
4. -0.33, and -1

 

Subtopic:  Oxidizing & Reducing Agents |
 86%
From NCERT
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The oxidation number of phosphorus in BaH2PO22 is-

1. -1

2. +1

3. +2

4. +3

Subtopic:  Oxidizing & Reducing Agents |
 69%
From NCERT
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2 mole of N2H4 loses 16 mole of electron is being converted to a new compound X. Assuming that all of the N appears in the new compound. What is the oxidation state of 'N' in X ?

1. -1

2. -2

3. +2

4. +4

Subtopic:  Equivalent Weight |
 53%
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