Reaction that represents reduction of hydrogen is -

1. Carbon Monoxide + Copper Oxide  Carbon Dioxide + Copper

2. Copper Oxide + Hydrochlorid Acid  Water + Copper Chloride

3. Steam + Iron Hydrogen + Iron oxide

4. Hydrogen+ Iron Oxide  Water + Iron

Subtopic:  Oxidizing & Reducing Agents |
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The oxidation number of Fe in K3[Fe(CN)6] is-

1. +2

2. +3

3. +4

4. +1

Subtopic:  Oxidizing & Reducing Agents |
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It is found that v forms a double salt isomorphous with Mohr's salt. The oxidation number of V in this compound is:

1. +3

2. +2

3. +4

4. -4

Subtopic:  Oxidizing & Reducing Agents |
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The correct order of reducing power of halide ions is:

1. Cl- > Br- > I- > F-

2. Cl- >  I- > Br- > F-

3.  Br> Cl- > I- > F-

4.  I- > Br> Cl- > F-

Subtopic:  Oxidizing & Reducing Agents |
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When H2SO3 is converted into H2SO4 the change in the oxidation state of sulfur is from:

1. 0 to +2

2. +2 to +4

3. +4 to +2

4. +4 to +6

Subtopic:  Oxidizing & Reducing Agents |
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The reaction during which nitrogen gets oxidised is-

1. NH4+ N2

2. NO3- NO

3. NO2 NO2-

4. NO3-NH4+ 

Subtopic:  Oxidizing & Reducing Agents |
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Reaction that shows hydrogen as an oxidising agent is -

1. With ioding to give hydrogen iodide

2. With lithium to give lithium hydride

3. With nitrogen to give ammonia

4. With sulphur to give hydrogen sulphide

 

Subtopic:  Oxidizing & Reducing Agents |
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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 |
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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 |
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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 |
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