Mercury or alcohol is commonly used in the thermometers. The freezing point of mercury is ____ while that of alcohol is ____.
A
-130°C, -39°C
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B
-39°C,-130°C
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C
-139°C, -30°C
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D
-30°C, -39°C
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Solution
The correct option is B -39°C,-130°C Mercury or alcohol is commonly used in the thermometers. The freezing point of mercury is -39°C whereas that of alcohol is -130°C.