Electronic Concepts of Oxidation and Reduction NEET Questions

Physical Chemistry - Redox Reactions and Electrochemistry

Electronic Concepts of Oxidation and Reduction MCQ Questions


13.
A species undergoing reduction acts as:
A.
Reducing agent
B.
Neutral agent
C.
Oxidising agent
D.
No agent
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ANSWER :
C. Oxidising agent
14.
Which of the following is a good oxidising agent?
A.
KMnO₄
B.
H₂
C.
NH₃
D.
Na
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ANSWER :
A. KMnO₄
15.
In terms of electron transfer, which one of the following reactions involves oxidation?

NEET - 2018

A.
Cl₂ → 2Cl⁻
B.
Fe²⁺ → Fe³⁺ + e⁻
C.
Na⁺ + e⁻ → Na
D.
H₂ + 2e⁻ → 2H⁻
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ANSWER :
B. Fe²⁺ → Fe³⁺ + e⁻
16.
In terms of oxidation number, oxidation is:
A.
Decrease in oxidation number
B.
No change in oxidation number
C.
Increase in oxidation number
D.
Sharing of electrons
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ANSWER :
C. Increase in oxidation number
17.
A reducing agent is a substance which:
A.
Donates protons
B.
Gains electrons
C.
Accepts oxygen
D.
Donates electrons
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ANSWER :
D. Donates electrons
18.
Which of the following is oxidised in the reaction: H₂ + Cl₂ → 2HCl?
A.
H₂
B.
Cl₂
C.
HCl
D.
None
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ANSWER :
A. H₂