Mercury is used in pressure measuring devices because of :

1. High density

2. Low vapour pressure

3. Sharp meniscus

4. Low freezing point

1, 3 and 4

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2, 3 and 4 only

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1 and 4 only

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1, 2, 3 and 4

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Solution

The correct option is D 1, 2, 3 and 4

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