CBSE Class 10 Sample Paper Science Solution - For 2024 Boards

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Question 17 [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 26

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Question 28 (Choice 2)

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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 33 Important

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Question 34 (Choice 1A)

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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 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 2 [Case Based]

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Question 39 (a) [Case Based]

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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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Identify the product which represents the solid state in the above reaction.

(a) Barium chloride

(b) Barium sulphate

(c) Sodium chloride

(d) Sodium sulphate

 

Answer:

(b) Barium Sulphate

The solution of Barium Chloride and Sodium Sulphate undergo a double displacement reaction:

BaCl 2 + Na 2 SO 4 → 2NaCl + BaSO 4

A white colored insoluble solid precipitate of Barium Sulphate (BaSO 4 ) is formed.

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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