CBSE Class 12 Chemistry Sample Paper Solutions 2025-26 with Detailed Analysis
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CBSE Class 12 Physics Sample Paper 2025-26 with Detailed Solution
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Q1. Which law verifies the conservation of electric charge?
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46%
Kirchhoff's First Law
25%
Ohm's Law
18%
Gauss's Law
11%
Ampere's Law
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CBSE Compartment Exam 2025 | Class 12th Result Out | How to Check Compartment Exam 2025 Result 🔥
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Q3. The resistivity of a conductor depends on:
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16%
Length
33%
Cross-sectional area
41%
Material and temperature
10%
Current through it
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CBSE Class 12 Biology Sample Paper 2025-26 with Detailed Solutions
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CUET 2026 Physics | Complete Book 1 Concept + MCQs | Backlog Series | By Gajendra Sir
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Which reaction is a redox reaction?
Anonymous Quiz
30%
HCl + NaOH → NaCl + H₂O
27%
AgNO₃ + NaCl → AgCl + NaNO₃
33%
Zn + CuSO₄ → ZnSO₄ + Cu
10%
BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl
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In a redox reaction, oxidation involves:
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33%
Gain of electrons
52%
Loss of electrons
11%
Gain of protons
4%
Loss of neutrons
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Reduction is defined as:
Anonymous Quiz
24%
Addition of oxygen
28%
Loss of hydrogen
42%
Gain of electrons
6%
Increase in oxidation number
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Oxidizing agent is a substance that:
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29%
Gains electrons
38%
Loses electrons
12%
Is reduced
21%
Both A and C
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Which of the following represents oxidation?
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19%
Cl₂ → 2Cl⁻
52%
Fe²⁺ → Fe³⁺
23%
Cu²⁺ → Cu
6%
H₂ → 2H⁺
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In the reaction: Zn + H₂SO₄ → ZnSO₄ + H₂, the reducing agent is:
Anonymous Quiz
32%
Zn
41%
H₂SO₄
21%
H⁺
6%
SO₄²⁻
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