CBSE Class 10 Sample Paper Science Solution - For 2024 Boards

Question 1

Question 2 Important

Question 3

Question 4

Question 5 Important

Question 6

Question 7

Question 8 Important

Question 9

Question 10 Important

Question 11

Question 12

Question 13 Important

Question 14 Important

Question 15

Question 16 Important

Question 17 [Assertion Reasoning] Important

Question 18 [Assertion Reasoning]

Question 19 [Assertion Reasoning]

Question 20 [Assertion Reasoning] Important

Question 21

Question 22 Important

Question 23 (Choice 1) Important

Question 23 (Choice 2)

Question 24

Question 25 (Choice 1)

Question 25 (Choice 2) Important

Question 26

Question 27 Important

Question 28 (Choice 1) Important

Question 28 (Choice 2)

Question 29 Important

Question 30

Question 31 (i) Important

Question 31 (ii)

Question 31 (iii) Important

Question 32 (i)

Question 32 (ii) Important

Question 33 Important

Question 34 (Choice 1A)

Question 34 (Choice 1B) Important

Question 34 (Choice 2)

Question 35 (Choice 1)

Question 35 (Choice 2A) Important

Question 35 (Choice 2B)

Question 36 (Choice 1) Important

Question 36 (Choice 2) Important

Question 37 (a) [Case Based] You are here

Question 37 (b) - Choice 1 [Case Based] Important

Question 37 (b) - Choice 2 [Case Based]

Question 38 (a) [Case Based] Important

Question 38 (b) [Case Based]

Question 38 (c) - Choice 1 [Case Based] Important

Question 38 (c) - Choice 2 [Case Based]

Question 39 (a) [Case Based]

Question 39 (b) [Case Based] Important

Question 39 (c) - Choice 1 [Case Based]

Question 39 (c) - Choice 2 [Case Based] Important

The table given below shows the hints given by the quiz master in a quiz.

S.NO

HINT
(i) Substance ‘C’ is used as a preservative.
(ii) ‘C’ has two carbon atoms; ‘C’ is obtained by the reaction of ‘A’ in presence of alkaline Potassium permanganate followed by acidification.
(iii)

Misuse of ‘A’ in industries is prevented by adding Methanol, Benzene, and pyridine to ‘A’.

(iv) ‘F’ is formed on heating ‘A’ in presence of conc Sulphuric acid.
(v) ‘F’ reacts with Hydrogen gas in presence of Nickel and Palladium catalyst.

 

Based on the above hints answer the following questions

(a) Give the IUPAC names of A and F

 

 

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo