CBSE Class 12 Chemistry Answer Key 2024, Question Paper, Solutions
CBSE Class 12 Chemistry Answer Key 2024: Students who appeared Chemistry exam on February 27, 2024, can evaluate their tentative marks through the CBSE Class 12 Chemistry Answer Key 2024. The paper consists of a total of 33 questions of 70 marks. Based on the initial analysis and feedback provided by both students and teachers, the difficulty level of the Chemistry paper was considered average. Here we have provided a Chemistry Question Paper, including SET 1, 2, 3, and 4 in PDF format below, to examine the variance in question types and difficulty. Additionally, students can also access the paper analysis and answer keys to evaluate their performance in the CBSE Class 12 Chemistry Exam 2024.
CBSE Class 12 Chemistry Answer Key 2024 Overview
The questions were designed to test students' in-depth conceptual understanding of the subject. Students who have appeared Chemistry exam can find the set-wise CBSE Class 12 Chemistry 2024 Answer Keys to evaluate their performance in the exam. Before that, check the overview of the CBSE Class 12 Chemistry 2024 exam:
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Details |
Information |
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Conducting Body |
Central Board of Secondary Education |
|
Name of the Examination |
CBSE Class 12th Board Examination 2024 |
|
Category |
Answer Key |
|
CBSE Class 12 Chemistry Exam Date 2024 |
February 27, 2024 |
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Total Marks |
100 marks (Theory: 70 marks, Practical: 30 marks) |
|
Negative Marking |
No negative marking |
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Mode of Answer Key Availability |
Online Mode |
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Official Website |
https://cbseacademic.nic.in/ |
CBSE Class 12 Chemistry Question Paper 2024 Pattern
The question paper was divided into 5 sections - A, B, C, D, & E, each carrying questions of 1, 2, 3, 4, & 5 marks. Below is a thorough breakdown of the exam pattern for the CBSE Class 12 Chemistry section-wise.
|
Section |
Questions |
Total Marks |
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A (1 marks) |
1-16 |
16 |
|
B (2 marks) |
17-21 |
10 |
|
C (3 marks) |
22-28 |
21 |
|
D (4 marks) |
29 and 30 |
8 |
|
E(5 marks) |
31-33 |
15 |
|
Total |
33 question |
70 marks |
Class 12 Chemistry CBSE Answer Key 2024 For All Sets
The CBSE Class 12 Chemistry Answer Key 2024 offers a comprehensive solution to the questions posed in the exam, providing students with a clear understanding of the correct responses. Access the complete CBSE Class 12 Chemistry Answer Key 2024 PDF with Question Paper for all sets 1, 2, 3, and 4 from below:
CBSE Chemistry Answer Key For Class 12th 2024 SET 1 56/2/1
SECTION A
1. When MnO2 is fused with KOH in air, it gives
(A) KMnO4
(B) K2MnO4
(C) MngO7
(D) Mn2O
Answer: (B) K2MnO4
2. Ligand EDTA is an example of a:
(A) Monodentate ligand
(B) Didentate ligand
(C) Tridentate ligand
(D) Polydentate ligand
Answer:(D) Polydentate ligand
3. Which of the following ligands forms a chelate complex?
(A) C2O2-4
(B) CI
(C) NO
(D) NH3
Answer: (A) C2O2-4
4. Which of the following contains sp2 hybridised carbon bonded to X?
Answer: (C)
5. Which of the following is most acidic?
Answer: (B)
6. Anisole reacts with HI to give:
Answer: (A)
Answer: (D)
8. An Azetrophic Solution of two liquids has a boiling point lower than either of them when it
(A) is saturated
(B) shows positive deviation from Raoult’s law
(C) shows negative deviation from Raoult’s law
(D) shows no deviation from Raoult’s law
Answer: (B) shows positive deviation from Raoult’s law
9. The relative lowering of the vapour pressure of an aqueous solution containing a non-volatile solute is 0.0225. The mole fraction of the non-volatile solute is
(A) 0.80
(B) 0.725
(C) 0:15
(D) 0.0225
Answer: (D) 0.0225
10. During electrolysis of an aqueous solution of NaCl :
(A) H2 (g) is liberated at the cathode
(B) Na is formed at the cathode
(C) O2 (g) is liberated at anode
(D) Cl2 (g) is liberated at the cathode
Answer: (A) H2 (g) is liberated at the cathode
11. The addition of a catalyst during a chemical renètion alters which of the following quantities of the reaction?
(A) Enthalpy
(B) Activation energy
(C) Entropy
(D) Internal energy
Answer: (B) Activation Energy
12. For the elementary reaction PQ, the rate of disappearance of ‘P’ increases by a factor of 8 upon doubling the concentration of ‘P’. The order of the reaction concerning ‘P’ is:
(A) 3
(B) 4
(C) 2
(D) 1
Answer: (A) 3
13. Assertion (A): Aliphatic primary amines can be prepared by Gabriel phthalimide synthesis.
Reason (R): Alkyl halides undergo nucleophile substitution with anion formed by phthalimide.
Answer: (A) Both true
14. Assertion (A): Uracil base is present in DNA.
Reason (R): DNA undergoes self-replication.
Answer: (D) Assertion is False, But Reason is True
15. Assertion (A): Diazonium salts of aromatic amines are more stable than those of aliphatic amines.
Reason (R): Diazonium salts of aliphatic amines show resonance.
Answer: (C)
16. Assertion (A): p-nitroaniline is a weaker base than p-toluidine.
Reason (R): The electron-withdrawing effect of the NO2 group in p-nitroaniline makes it a weaker base.
Answer: (A) Both true
21. Define the following terms:
(a) Denaturation of protein
Answer: Denaturation of Protein happens when a protein’s natural structure changes without its peptide bonds breaking. This usually occurs when the protein’s secondary, tertiary, or quaternary structures get disturbed, making it lose its biological function. Denaturation can happen due to factors like high heat, extreme pH levels, certain chemicals, or rough handling. When denaturation occurs, the protein unfolds and loses its usual three-dimensional shape, which is necessary for its proper function.
(b) Invert Sugar
Answer: Invert sugar is a mixture of two simple sugars: glucose and fructose. It is formed by the hydrolysis (breakdown) of sucrose, which is a disaccharide composed of one molecule of glucose and one molecule of fructose linked together.
CBSE Class 12 Chemistry Answer Key 2024 SET 2 56/4/2
The first 16 questions of CBSE Class 12 Chemistry Answer Key 2024 SET 2 56/4/2 are Multiple-choice questions. As per the teachers and students feedback, here we have compiled their answers:
|
Question No. |
Answer |
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1 |
A |
|
2 |
B |
|
3 |
A |
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4 |
C |
|
5 |
A |
|
6 |
A |
|
7 |
D |
|
8 |
B |
|
9 |
A |
|
10 |
A |
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11 |
C |
|
12 |
A |
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13 |
A |
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14 |
A |
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15 |
- |
|
16 |
- |
CBSE Class 12 Chemistry Board Question Paper 2024 PDF
The Central Board of Secondary Education (CBSE) conducted the Class 12th Chemistry Board Exam on February 27, 2024. The question papers will be released on the official website along with the CBSE Class 12 Chemistry Answer Key 2024 PDF. Through question paper, students can get insights into the question paper format and the types of questions that are asked. Below are the direct links to download the CBSE Class 12th Chemistry Question Paper 2024 PDF:
|
Set |
Question Paper Link |
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SET 1 |
Class 12 Chemistry SET 1 Question Paper 2024 |
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SET 1 |
Class 12 Chemistry SET 1 Question Paper 2023 |
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SET 2 |
Class 12 Chemistry SET 2 Question Paper 2023 |
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SET 3 |
Class 12 Chemistry SET 3 Question Paper 2023 |
CBSE Chemistry Answer Key FAQs
Q1: How can I check my CBSE Chemistry Answer Key For Class 12th?
Ans: Students can visit the CBSE academic website at cbseacademic.nic.in, to download questions papers and answer keys.
Q2: Is there a negative marking in the CBSE Class 12 Chemistry exam?
Ans: No, there are no negative markings in the CBSE Class 12 Chemistry exam.
Q3: What are the total marks of the Chemistry paper?
Ans: The total mark of the CBSE class 12 Chemistry Question paper is 70 marks.
Q4: How to use the answer key and solutions effectively?
Ans: Use the CBSE Class 12 Chemistry Answer Key 2024 to compare your responses with the correct ones. Identify incorrect answers and learn from them to improve.
