Fluorine is a strong oxidising agent because:

1. it has several isotopes

2. it is very small and has 7 electrons in valency shell

3. its valency is one

4. it is the first member of the halogen series

Subtopic:  Oxidizing & Reducing Agents |
 74%
From NCERT
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The oxidation state of Ni in Ni(CO)4 is:

1. zero

2. +4

3. +8 

4. +2

Subtopic:  Oxidizing & Reducing Agents |
 79%
From NCERT
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Milliequivalents of a solute in a solution can be given by:

1. Mzeq. = M x Vin mL

2. Meq. = N x Vin mL

3. Mzeq. = massEq. mass×1000

4. both 2 and 3

Subtopic:  Oxidizing & Reducing Agents |
 65%
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HBr and HI reduce H2SO4, HCl can reduce KMnO4 and HF can reduce:

1. H2SO4

2. K2Cr2O7

3. KMnO4 

4. none of these

Subtopic:  Oxidizing & Reducing Agents |
 52%
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Sulphurous acid can be used as:

1. Oxidising agent

2. Reducing agent

3. Bleaching agent

4. All of the above

Subtopic:  Oxidizing & Reducing Agents |
 66%
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When SO2 is passed through acidified solution of potassium dichromate, then chromium sulphate is formed. The change in oxidation number of chromium is:

1. +4 to+2 

2. +5 to+3

3. +6 to+3

4. +7 to+2

Subtopic:  Oxidizing & Reducing Agents |
 79%
From NCERT
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The reaction involving the transfer of five electrons is -

1. MnO4-  Mn2+

2. CrO42- Cr3+

3. MnO4-  MnO2

4. Cr2O72- 2Cr3+

Subtopic:  Oxidizing & Reducing Agents |
 83%
From NCERT
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In the reaction;

2Ag + 2H2SOAg2SO4 + 2H2O + SO2, H2SO4 acts as:

1. Oxidizing agent

2. Reducing agent

3. Dehydrating agent

4. None of the above

Subtopic:  Balancing of Equations |
 74%
From NCERT
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Which of the following shows the highest oxidation number in the combined state?

1. Os

2. Ru

3. Xe

4. All of the above

Subtopic:  Oxidizing & Reducing Agents |
 61%
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Equation that does not represent a redox reaction is-

1. BaO2 + H2SO4 BaSO4 +  H2O

2. 2BaO + O2  2BaO

3. 2KClO3 →2KCl + 3O2 

4. SO2 + 2H22H2O + 3S

Subtopic:  Oxidizing & Reducing Agents |
 53%
From NCERT
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