CBSE Class 12 Chemistry Answer Key 2021-2022: Central Board of Secondary Education, CBSE Class 12 Chemistry Term 1 Examination 2021-22 was conducted today i.e. December 14, 2021.
CBSE Class 12 Chemistry 2021 Term 1 question paper review, answer key, student reactions is now available. Students are happy with the moderately easy paper. CBSE Answer Key for Class 12 Chemistry downloadable PDF is also available here.
Contents
CBSE Class 12 Chemistry Answer Key 2021-2022
CBSE Class 12 Chemistry Answer Key for Term 1 MCQs is now available and provided below.
Three answer keys for different question paper codes if provided below for quick reference and checking. Students can also click on the links provided to download CBSE Answer Key Chemistry PDF. Student reactions and question paper review are provided below.
CBSE Class 12 Chemistry Answer Key
CBSE Answer Key for QP Code 056/1/4
| Q. No. | Answer | Q. No. | Answer | Q. No. | Answer | Q. No. | Answer |
| 1 | c | 16 | d | 31 | c | 46 | a |
| 2 | b | 17 | d | 32 | b | 47 | c |
| 3 | d | 18 | c | 33 | a | 48 | a |
| 4 | a | 19 | b | 34 | a | 49 | c |
| 5 | b | 20 | a | 35 | a | 50 | c |
| 6 | d | 21 | c | 36 | b | 51 | b |
| 7 | b | 22 | d | 37 | c | 52 | d |
| 8 | c | 23 | a | 38 | a | 53 | b |
| 9 | b | 24 | b | 39 | c | 54 | d |
| 10 | a | 25 | d | 40 | b | 55 | b |
| 11 | c | 26 | c | 41 | d | ||
| 12 | b | 27 | a | 42 | b | ||
| 13 | d | 28 | c | 43 | d | ||
| 14 | b | 29 | c | 44 | b | ||
| 15 | a | 30 | d | 45 | d |
CBSE Answer Key for QP Code 056/2/4
| Q. No. | Answer | Q. No. | Answer | Q. No. | Answer | Q. No. | Answer |
| 1 | b | 16 | d | 31 | c | 46 | a |
| 2 | c | 17 | a | 32 | a | 47 | b |
| 3 | a | 18 | c | 33 | b | 48 | d |
| 4 | d | 19 | b | 34 | d | 49 | a |
| 5 | c | 20 | d | 35 | b | 50 | c |
| 6 | b | 21 | a | 36 | c | 51 | d |
| 7 | d | 22 | c | 37 | d | 52 | a |
| 8 | a | 23 | d | 38 | b | 53 | b |
| 9 | d | 24 | b | 39 | a | 54 | a |
| 10 | c | 25 | a | 40 | c | 55 | c |
| 11 | b | 26 | c | 41 | d | ||
| 12 | a | 27 | b | 42 | b | ||
| 13 | b | 28 | d | 43 | d | ||
| 14 | a | 29 | b | 44 | c | ||
| 15 | c | 30 | a | 45 | c |
CBSE Answer Key for QP Code 056/3/4
| Q. No. | Answer | Q. No. | Answer | Q. No. | Answer | Q. No. | Answer |
| 1 | c | 16 | a | 31 | b | 46 | a |
| 2 | d | 17 | c | 32 | a | 47 | b |
| 3 | c | 18 | d | 33 | c | 48 | d |
| 4 | b | 19 | b | 34 | a | 49 | a |
| 5 | a | 20 | a | 35 | c | 50 | b |
| 6 | c | 21 | c | 36 | c | 51 | b |
| 7 | a | 22 | b | 37 | b | 52 | d |
| 8 | d | 23 | d | 38 | d | 53 | a |
| 9 | c | 24 | b | 39 | a | 54 | c |
| 10 | a | 25 | c | 40 | c | 55 | d |
| 11 | d | 26 | a | 41 | c | ||
| 12 | b | 27 | d | 42 | b | ||
| 13 | d | 28 | c | 43 | d | ||
| 14 | b | 29 | b | 44 | b | ||
| 15 | d | 30 | c | 45 | c |
The question paper had a total of 55 questions. Students were required to attempt a total of 45 questions – based on internal choices. A total of 90 minutes were given to students.
Disclaimer: The answers have been provided by experts with years of experience in teaching the subject. Times Now takes no responsibility of the accuracy of the responses. They have been provided only for reference purposes.
CBSE Class 12 Chemistry Answer Key 2021-22 – Question /Answers
Students can check CBSE Class 12 Chemistry Term 1 question with answers from the section below.
Students can check CBSE Class 12 Chemistry Term 1 question with answers from the section below.
Q1. In a crystal of an ionic compound, the ions Q form the ccp lattice and the ions P occupy all the tetrahedral voids. The formula of the compund is:
Ans. P2Q
Ques. Increasing the temperature of an aqueous solution will cause:
Ans. Decrease in molarity
Ques. Which of the following conditions is suitable for an ideal solution?
Ans. ΔmixH = 0 and ΔmixV = 0
Ques. 2-Bromo-2-methylpropane is allowed to react with alcoholic KOH solution. The major product formed is:
Ans. Correct option is (d) – Alkene
Ques. Which of the following intermediates is formed in the reaction shown below?
Ans. Both CH3CH2OH2 and CH3 – CH2+
Ques. Glucose is oxidized by Br2 water to give-
Ans. COOH-(CHOH)4-CH2OH
Ques. Which of the following has the largest bond angle?
Ans. NH4
Ques. Which of the following element does now show an oxidation rate higher than +2?
Ans. Oxygen
Ques. Which of the following is a molecular solid?
Ans. Ar
Ques. For determination of molar mass of polymers and proteins. Which colligative property is used-
Ans. Depression of freezing point
Ques. Which of the following in fibrous protein?
Ans. Keratin
Ques. The acid strength HF, HCI, HBr and HI increases in the order-
Ans. HF<HCl<HBr<HI
Ques. Which is not correct about concentrated H2SO4?
Ans. Ka2>Ka1
Ques. Pure water boils at 373.15 K and nitric acid boils at 359.15 K. An azeotropic mixture of H2O and HNO3 boils at 393.55 K. Distilling the azeotropic mixture will cause-
Ans. Both of them is Distil over in the same composition as that of the mixture being distilled.
Ques. A 5% (by mass) solution of glucose (molar mass=180g mol-1) is isotonic with 1% solution (by mass) of a substance “X’’. The molar mass of “X” is-
Ans. 36g mol-1
Ques. An SN1 reaction of an enantiomerically pure chiral alkyl halide gives a product
Ans. with racemisation
Ques. α-D-Glucopyranose and β-D-Glucopyranose are
Ans. Anomers
Ques. Fluorine does not exhibit variable oxidation states due to
Ans. Non-availability of d-orbitals in the valence shell
Ques. The formation of O2+{PtF6}– is the basis for the formation of Xenon Fluoride. This is because
Ans. O2 and Xe have comparable ionization enthalpies
Ques. Chlorobenzene reacts with Cl2 in the presence of FeCl3 giving ortho and para chloro compounds. The reaction is
Ans. Electrophile substitution reaction
Ques. Phenol is more acidic than ethanol because
Ans. Phenoxide ion is more stable than Ethoxide ion
Ques. Which of the following statements is not correct about amorphous solids?
Ans. Amorphous solids are anisotropic
Ques. An element with a molar mass 96 g mol-1 forms a cubic unit cell with edge length 4 x 10-8 cm. If the density is 10 g cm-3 the nature of the unit cell is
Ans. fcc
Ques. When 2.5 g of non-volatile solute is dissolved in 50Ml of water, it gave a boiling point elevation of 0.52 degrees Celcius. The molar mass of solute is
Ans. 50 g mol-1
Ques. Which of the following gas is released on heating ammonium dichromate ( NH4)2Cr2O7?
Ans. N2
Ques. On its reaction with water and alkalies, the behaviour of SO2(g) is very similar to that of which gas?
Ans. CO2
CBSE Class 12 Exam Pattern 2021-22
Objective Type: Multiple choice questions (MCQ) will be included in the question paper, including case-based MCQs and MCQs of the assertion-reasoning kind.
- Maximum Marks: 50
- Duration of Exam: 90 minutes
- Question papers will be based on the truncated syllabus, approximately 50% of the entire syllabus.
| Section | Total questions | Attempt any |
| A | 25 | 20 |
| B | 24 | 20 |
| C | 6 | 5 |