CBSE Class 12 Chemistry Answer Key 2021-22 – Students can check CBSE Class 12 Chemistry answer key from this page. It is released by subject experts and educational institutes online soon after the exam is over. You will also obtain video solutions and exam analysis for the same. With the help of the CBSE 12th Chemistry answer key and solutions, students can cross-check their answers and calculate their estimated marks in the Term 1 examination. The CBSE will also publish the answer key for Class 12 on its website, cbse.gov.in. For more details about CBSE Class 12th Chemistry Answer Key 2021-22, see the page below.
Latest: CBSE Class 12 Chemistry Term 1 answer key 2021-22 is now available. Check the question & answers from below.
CBSE Class 12 Chemistry Answer Key 2021-22
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 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 molar mass 96 g mol-1 forms a cubic unit cell with edge length 4 x 10-8 cm. If density is 10 g cm-3 the nature of unit cell is
Ans. fcc
Ques. When 2.5 g of non-volatile solute is dissolved in 50Ml of water, it gave boiling point elevation of 0.52 degree 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 behavior of SO2(g) is very similar to that of which gas?
Ans. CO2
Disclaimer: The answers are unofficial, and not published by the exam conducting body. They have been compiled by teachers, educators, and individuals with the aim of helping students. Aglasem takes no responsibility for the accuracy of the responses. They have been provided only for reference purposes.
CBSE Class 12 Chemistry Video Solutions for Term 1 Exam 2021-22
Check the video solutions for CBSE 12th Chemistry Term 1 exam as released by subject experts from the table below.
| Answer Key Videos by | Links |
| We Won Academy | Click Here |
| Adda 247 | Click Here |
| Vedantu | Click Here |
How to calculate your marks with CBSE Class 12 Answer Key 2021-22
These Answer Keys must be used to evaluate candidates’ performance on the Class 12 Chemistry test. They should use the marking method specified on the question paper to calculate their score. All of this year’s CBSE Class 12 exams will be multiple-choice, with students choosing one of four answers for each question. Even though it differs from the official answer key in some places, it can assist candidates determine a major amount of their final score. For example, some teachers may provide an answer key to help pupils assess their exam odds. Students can get a range of unofficial CBSE Class 12 Chemistry2021-22 answer keys by going to the exact URL.
CBSE Class 12 Chemistry Question Paper 2021-22
Chemistry Class 12 CBSE Question paper was based on the revised syllabus of Term 1 as released by CBSE. The Chemistry question paper covered all the topics and was of 50 marks.
The CBSE curriculum includes a lot of chemistry. For the year 2021, the CBSE question paper will be multiple-choice, with no questions requiring descriptive answers. The Chemistry question paper will be the same format in both Term 1 and 2. The minor and main examinations were held in November and December. Once all examinations have been completed, the CBSE Question Paper for the ChemistryExam can be downloaded from the official website. After the exams are done, students can obtain the Question Paper from a variety of unofficial sources.
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 |
Importance of CBSE Class 12 Answer Key 2021-22
The CBSE answer key is an important part as candidates can get a good idea of their performance by evaluating their marks. Students must use the Answer Keys of CBSE Class 12 with the Marking Scheme to calculate their scores.
Unofficial Chemistry answer keys will be made public shortly after the tests are completed. Students can utilise official answer keys to figure out what grades they’ll get on their Class 12 report card. The grading structure can be utilised to determine raw marks, and CBSE answer keys can be used to summarise responses.
CBSE Class 12 Result 2022
The CBSE Results will be released by February 2022 (tentatively) after the Term 2 examinations are over.
The CBSE intends to complete the 12 th-grade exams in February 2022 and publish the results in July 2022. The CBSE’s student portal on the website allows candidates to view their results. Students must enter their Roll Number and Date of Birth in order to obtain their results. The Central Board of Secondary Education will declare the consolidated Results for both terms 1 and 2 once CBSE professionals have completed their analysis of the Term 2 answer scripts. Class 12 students should keep their CBSE Class 12 Board test results since they are an important record that they will require throughout their lives. Class 12 results are expected to reach students and schools in February 2022, but the CBSE Board has yet to establish a date for their publication. The date for the release of CBSE Class 12 results has not yet been announced.
FAQs on CBSE Class 12 Chemistry Answer Key 2021-22
The CBSE Exam for Chemistry Class 12 was conducted on December 14, 2021.
The official answer keys will be released soon. You can find the unofficial answer keys on the websites of coaching centres and various institutes.
Class 12 Chemistry will be released by the CBSE board.
The official website of the CBSE Board is https://www.cbse.gov.in/
The answer keys of CBSE Class 12 might see slight variation but students can get a rough idea of their scores.
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