Assertion: Galium is used in High temperature thermometer
Reason: There is large difference between M.P&B.P of galium

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Assertion is true but reason is false

Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion

Both Assertion and Reason are true and reason is true explanation of Assertion

A is false and But R is true

answer is A.

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Detailed Solution

Gallium is a liquid metal at room temperature ( ≈ 302 K ), and has a very wide range for liquid state, and its boiling point is 2673 K. It has low vapor pressure and low toxicity. So, it is used in high-temperature thermometers.

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