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CBSE Class 10 Science Question 17 of 45

Solved 2024 Sample Question Paper CBSE Class 10 Science — Question 17

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Question

Question 17

Assertion: Rusting of Iron is endothermic in nature.

Reason: As the reaction is slow, the release of heat is barely evident.

  1. Both A and R are true, and R is the correct explanation of A.
  2. Both A and R are true, and 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 false but R is true

Reason — Rusting of iron is an exothermic process. It is a slow process and the amount of heat released isn't significant per unit of time.