CBSE Class 10 Sample Paper Science Solution - For 2024 Boards

Question 1

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Question 3

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Question 4

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Question 9

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Question 11

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Question 12

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Question 15

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Question 17 [Assertion Reasoning] Important

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Question 18 [Assertion Reasoning]

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Question 19 [Assertion Reasoning]

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Question 20 [Assertion Reasoning] Important

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Question 21

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Question 23 (Choice 1) Important

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Question 23 (Choice 2)

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Question 24

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Question 25 (Choice 1)

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Question 26

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Question 28 (Choice 1) Important

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Question 28 (Choice 2)

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Question 29 Important

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Question 30

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Question 31 (i) Important

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Question 31 (ii)

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Question 31 (iii) Important

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Question 32 (i)

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Question 32 (ii) Important

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Question 33 Important

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Question 34 (Choice 1A) left arrow to signify that you are on this page You are here

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Question 34 (Choice 1B) Important

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Question 34 (Choice 2)

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Question 35 (Choice 1)

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Question 35 (Choice 2B)

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Question 36 (Choice 1) Important

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Question 36 (Choice 2) Important

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Question 37 (a) [Case Based]

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

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

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Question 38 (a) [Case Based] Important

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Question 38 (b) [Case Based]

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

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

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Question 39 (a) [Case Based]

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Question 39 (b) [Case Based] Important

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

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

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Rehmat classified the reaction between Methane and Chlorine in presence of sunlight as a substitution reaction. Support Rehmat’s view with suitable justification and illustrate the reaction with the help of a balanced chemical equation.

 

Answer:

Substitution reactions are those where the functional group of one chemical compound is replaced by another group.

When Methane (CH 4 ) react with Chlorine (Cl 2 ), in the presence of sunlight, the following reaction takes place:

Since one hydrogen atom in methane is replaced by chlorine, it is called a substitution reaction.

So, Rehmat’s observation is correct.

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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