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Class 12Subject Code: 043Board Exam: 2026Set 1 (Code 56/1/1)

CBSE Class 12 Chemistry Question Paper 2026

Board: Central Board of Secondary Education (CBSE)Exam Type: Main Board ExaminationMax Marks: 70Duration: 3 Hours

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Comprehensive question-by-question independently authored solutions for CBSE Class 12 Chemistry Board Examination (2026). Questions are referenced directly to the official CBSE Question Paper.

Question 1 (1 Marks) — SolutionsEasy

The value of Henry's law constant K_H for gas A is higher than that for gas B at the same temperature. Which gas will have higher solubility in water?

Answer: Gas B has higher solubility (lower K_H value implies greater solubility)View Step-by-Step →
Question 2 (1 Marks) — ElectrochemistryEasy

State Kohlrausch's law of independent migration of ions and express limiting molar conductivity Λ°_m of acetic acid (CH₃COOH) in terms of limiting molar conductivities of strong electrolytes HCl, NaCl, and CH₃COONa.

Answer: Λ°_m(CH₃COOH) = Λ°_m(CH₃COONa) + Λ°_m(HCl) - Λ°_m(NaCl)View Step-by-Step →
Question 3 (1 Marks) — Chemical KineticsEasy

What are the SI units of the rate constant k for a first-order chemical reaction?

Answer: s⁻¹ (per second or time⁻¹)View Step-by-Step →

Paper Metadata

Class:Class 12
Subject:Chemistry
Subject Code:043
Exam Year:2026
Status:Verified Active
Last Verified:2026-04-10
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Source of question paper: Central Board of Secondary Education (CBSE). QuizCluster provides independently prepared educational solutions and explanations. QuizCluster is an independent educational platform and is not affiliated with or endorsed by CBSE. Question papers are accessed through links to official CBSE resources and are not hosted by QuizCluster.