Question

Assertion (A) : Rusting of iron is a chemical change.

Reason (R) : Rusting is a slow process in which the surface of iron is spoiled due to the action of

oxygen and water on it.​

Answer 1

Both Assertion and Reason are true and Reason is correct explaination of assertion.

• A chemical change occurs when there's a change in whole chemical structure of substance and not just the physical properties.
• So in case of rusting of iron there's a formation of iron oxide in presence of either oxygen or water vapour. Hence, rusting of iron is a chemical change so given assertion is true.
• During this slow process there is a formation of new substance called iron oxide because of water vapour or atmospheric oxygen overtime. Hence, rusting is a slow process in which the surface of iron is spoiled due to the action of oxygen and water on it.
• Therefore, both Assertion and Reason are true and Reason is correct explaination of assertion.

Answer 2

Answer:

correct answer is a

Explanation:

a is the correct option