Practicing Success
Practicing Success
CUET Preparation Today
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Alcohol rather than mercury is used in a thermometer to measure a temperature of - 60° C. Reason (R) : Alcohol has a lower freezing point than mercury. In the light of the above statements, choose the most appropriate answer from the options given below : |
Both (A) and (R) are correct and (R) is the correct explanation of (A) Both (A) and (R) are correct but (R) is not the correct explanation of (A) (A) is correct but (R) is not correct (A) is not correct but (R) is correct |
Both (A) and (R) are correct and (R) is the correct explanation of (A) |
(I). (A) is correct: We do use alcohol in thermometers to measure temperatures below -60°C. (II). (R) is also correct: The reason why we use alcohol in thermometers to measure temperatures below -60°C is that alcohol has a lower freezing point than mercury. (III). (R) is the correct explanation of (A): The fact that alcohol has a lower freezing point than mercury is the reason why we use alcohol in thermometers to measure temperatures below -60°C. Thus, both statements are correct and the reason stated in (R) is the correct explanation for why we use alcohol in thermometers to measure temperatures below -60°C. |
