Which of the following oxidation states are the most characteristics for lead and tin respectively?

1. +4, +2                     

2. +2, +4

3. +4, +4                     

4. +2, +2

Subtopic:  Oxidizing & Reducing Agents |
 57%
From NCERT
NEET - 2007
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Which one of the following orders correctly represents the increasing acid strengths of the given acids?

(1) HOCl <HOClO <HOClO< HOClO3

(2) HOClO <HOCl <HOClO<HOClO2

(3) HOClO<HOClO<HOClO <HOCl

(4) HOClO3> HOClO<HOClO <HOCl

Subtopic:  Oxidizing & Reducing Agents |
 75%
NEET - 2007
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HNO2 acts both as reductant and oxidant, while HNO3 acts only as oxidant. It is due to their .

(1) Solubility ability

(2) Maximum oxidation number

(3) Minimum oxidation number

(4) Minimum number of valence electrons

Subtopic:  Oxidizing & Reducing Agents |
 81%
From NCERT
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The valency of Cr in the complex [Cr(H2O)4Cl2]+ [MP PMT 2000]

(1) 1

(2) 3

(3) 5

(4) 6

Subtopic:  Oxidizing & Reducing Agents |
 69%
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In the conversion Br2BrO3, the oxidation state of bromine changes from -

(1) – 1 to – 1

(2) 0 to – 1

(3) 0 to + 5

(4) 0 to – 5

Subtopic:  Oxidizing & Reducing Agents |
 91%
From NCERT
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Oxidation number of cobalt in K[Co(CO)4] is

(1) + 1

(2) + 3

(3) – 1

(4) – 3

Subtopic:  Oxidizing & Reducing Agents |
 73%
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The oxidation number of nickel in Ni(CO)4

1. 0

2. + 4

3. – 4

4. + 2

Subtopic:  Oxidizing & Reducing Agents |
 84%
From NCERT
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Sn++ loses two electrons in a reaction. The final oxidation number of tin will be-

1. + 2

2. Zero

3. + 4

4. – 2

Subtopic:  Oxidizing & Reducing Agents |
 64%
From NCERT
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The oxidation number of S in H2S2O8 is:

1. + 2

2. + 4

3. + 6

4. + 7

Subtopic:  Oxidizing & Reducing Agents |
 69%
From NCERT
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The oxidation state of nitrogen in N3H is-

1. +13

2. + 3

3. –1

4. 13

Subtopic:  Oxidizing & Reducing Agents |
 86%
From NCERT
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