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Solved 2023 Question Paper CBSE Class 10 Science — Question 19

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Question 19

Assertion (A) : Blood clotting prevents excessive loss of blood.

Reason (R) : Blood clotting is due to blood plasma and white blood cells present in the blood.

  1. Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
  3. (A) is true, but (R) is false.
  4. (A) is false, but (R) is true.
Answer

(A) is true, but (R) is false.

Reason — Blood clotting is due to blood platelets, fibrinogen and Prothrombin.

Source: This question is from Solved 2023 Question Paper CBSE Class 10 Science, Science — Class 10, CBSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter Solved 2023 Question Paper CBSE Class 10 Science: Question, Assertion, Blood, Clotting, Prevents, Excessive. These are fundamental topics in Science that students are expected to master as part of the CBSE Class 10 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Science papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Read the question carefully and identify all parts before answering.
  • Use the terminology specific to this subject and chapter.
  • Review the textbook content for this chapter before attempting questions.
  • Practice writing concise, well-structured answers within time limits.

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