Reduction is defined as:
Anonymous Quiz
24%
Addition of oxygen
28%
Loss of hydrogen
41%
Gain of electrons
7%
Increase in oxidation number
🤗2
Oxidizing agent is a substance that:
Anonymous Quiz
28%
Gains electrons
38%
Loses electrons
13%
Is reduced
20%
Both A and C
❤3
Which of the following represents oxidation?
Anonymous Quiz
21%
Cl₂ → 2Cl⁻
48%
Fe²⁺ → Fe³⁺
25%
Cu²⁺ → Cu
6%
H₂ → 2H⁺
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In the reaction: Zn + H₂SO₄ → ZnSO₄ + H₂, the reducing agent is:
Anonymous Quiz
32%
Zn
40%
H₂SO₄
22%
H⁺
6%
SO₄²⁻
❤2
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❤1
Which of the following has the highest oxidation number?
Anonymous Quiz
46%
Mn in KMnO₄
44%
Cr in Cr₂O₇²⁻
8%
N in NH₃
2%
Cl in Cl₂
👍2❤1🔥1
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🤗1
Which of the following is both oxidized and reduced in the same reaction (disproportionation)?
Anonymous Quiz
26%
Cl₂
30%
Fe
29%
H₂S
14%
NH₃
Which element undergoes reduction in the reaction: CuO + H₂ → Cu + H₂O?
Anonymous Quiz
52%
Cu
23%
H
13%
O
12%
CuO
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✅ Preparation 2025-26✅ Relations and Functions
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✅ | Electric Charges and Fields |✅ Concept + Questions
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