ISC Chemistry Sem-1 Answer Key of Class-12 Session 2021-22

ISC Chemistry Sem-1 Answer Key of Class-12 for 2021-22 session . Step by step solutions of ISC Class-12 Paper of Sem-1 Chemistry for 2021-22. During solutions of semester-1 Chemistry examination paper we explain with figure , graph, table whenever necessary so that student can analysis his sem-1 exam with more accuracy.. Visit official website CISCE for detail information about ISC Class-12.

Answer Key of ISC Class-12 Chemistry Sem-1 Exam

Board	ISC
Class	12th (XII)
Subject	Chemistry
Exam	Semester-1
Syllabus	on bifurcated syllabus (after reduction)
Session	2021-22
Topic	Answer Key
Max	70
Time allowed	one and half hour
Total Question	50 (with part)
Question Type	MCQ/ Objective (as prescribe by council)

Date of ISC Chemistry Sem-1 Exam

According press release, The Previous date sheet of sem-1 Chemistry exam to be held on Monday 6th December from 2:00 PM to 3:30 PM. but at eleventh hour council postponed the sem-1 Previous date sheet saying that it was beyond their control. Therefore again CISCE press released revised date sheet.

Report said and declared the RE REVISED DATE for ISC Chemistry that it would be held on Monday, December 13, 2021, at 2.00 pm in various ISC school throughout India.

Paper Format for Sem-1 Exam of ISC Chemistry

The question paper consists of a total number of Question 50 (with all parts) with 70 max marks. For more deep information about format view Specimen Paper of ISC Chemistry of sem-1 Exam.

Question Type

The council has already declared that this year the council is conducting ISC semester 1 exam on MCQs format question only. It will be beneficial to every student to check the correct option given in the answer. It will help students in knowing the probable marks scored in the exam. Also, it will help in understanding the performance in the particular subject

Answer Key of ISC Chemistry Sem-1 Exam

answer key of ISC Chemistry will be available whenever exam over . our team would release as soon as possible . refresh this page time to time to get answer key. we will also provide question paper so that student can match their marks with more accuracy . please click on following link to get answer key (unofficial).

Answer Key of ISC chemistry Sem-1 Exam (available )

Question 1

Question 2

Question 3

(b) Cations move towards copper electrode

Question 4

(a) Cuprous sulphide (Cu₂S)

Question 5

(a) -1 and +5

Question 6

(a) Ethyl isocyanide

Question 7

(d) 2,4,6 tribromophenol

Question 8

(b) 4:2:1

Question 9

(d) 1 coulomb

Question 10

Question 11

Question 12

Question 13

(d) Methanol

Question 14

(b) KYO₂

Question 15

(d) Ethyl alcohol

Question 16

(b) 349 g mol-¹

Question 17

(b) 1·08 V

Question 18

(d) Ethyl acetate and ethyl chloride

Question 19

(d) 3,2,1

Question 20

(a) Nature of solvent.

Question 21

Question 22

Question 23

(d) F-centres

Question 24

(b) 279·0 ohm-1cm2mol-1

Question 25

Question 26

(i) (c) Refining

(ii) (b) Smelting

Question 27

(i) (c) Wurtz reaction

(ii) (a) tert-butyl chloride

Question 28

(i) (d) Chalcopyrite

(ii) (c) Cu₂S + 2Cu₂O → 6Cu + SO₂

Question 29

(i) (a) Phenol

(ii) (b) Dow’s process

Question 30

(i) (b) Square pyramidal

(ii) (c) sp3d

Question 31

(i) (b) C₂H₅Br

(ii) (d) C₂H₅OC₂H₅

Question 32

(i) (d) Na[Ag(CN)₂] and Na₂S

(ii) (c) Mac-Arthur-Forrest cyanide process

Question 33

(i) (d) Bromomethane, silver bromide and carbon dioxide

(ii) (c) Hunsdiecker reaction

Question 34

(i) (b) sp3d

(ii) (b) Square pyramidal

Question 35

(i) (c) Neutral FeCl₃

(ii) (d) Violet

Question 36

(i) (b) Tailing of mercury

(ii) (b) White coloured lead sulphate

Question 37

(i) (b) Face centred cubic

(ii) (c) 141·4 pm

Question 38

(i) (d) 5·16 atm

(ii) (b) 0·21 M

Question 39

(i) (c) 1·16 x 10-² Ω-¹ cm-¹

(ii)

(a) 232·20 Ω-¹ cm² mol-¹

Question 40

(i) (a) 405·8 pm

(ii) (c) 10·72 g/cm³

Question 41

(i) (b) 270·768 K

(ii) (a) 1·20 m

Question 42

(i) (b) +0·89V

(ii) (b) -515·3 kJ

Question 43

(i) (b) 330·56 pm

(ii) (c) 143 pm

Question 44

(i) (c) 4·190 mm Hg

(ii) (b) 0·0826

Question 45

(i) (b) 0·024 M

(ii) (a) 241·67 S cm²/mol

Question 46

(d) Assertion is false but reason is true.

Question 47

(a) Both assertion and reason are true and reason is the correct explanation of the assertion.

Question 48

(a) Both assertion and reason are true and reason is the correct explanation of the assertion.

Question 49

Question 50

How to use the ISC Class 12 Answer Key of 2021-22?

Once you have downloaded the answer key, at first you can tally the options given with the answer you marked. By adding all the correct marks questions, you can calculate the marks obtained in the certain subject. The marks you calculated might not be the final marks. It may vary and the same will be reflected in the result. In addition, you can analyze your performance in the particular section. Students can mark the sections where they scored less than expected and can work harder for the next examination

–: End of Answer Key for ISC Class-12 Chemistry Sem-1 :-

Return to – CISCE Semester-1 Answer Key for ICSE and ISC

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