Chemistry · Group 13 to Group 18 Elements
Assertion Copper is used to make hot water tanks and not steel (an alloy of iron
Assertion Copper is used to make hot water tanks and not steel (an alloy of iron) Reason Copper does not react with cold water, hot water or steam. However, iron reacts with steam. If the hot water tanks are made of steel (an alloy of iron), then iron would react vigorously with the steam formed from hot water.
- A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
- B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
- C. Assertion is correct but Reason is incorrect
- D. Both Assertion and Reason are incorrect
Step-by-step solution
Copper is inert to water and steam, making it ideal for hot water tanks. Steel, containing iron, reacts with steam (though not always vigorously), which would damage the tank over time. Thus, the reason correctly explains why copper is preferred.
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