Which metal is used in thermometers?

Sodium

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Mercury

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Magnesium

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Silver

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Solution

The correct option is B Mercury
Mercury is used in thermometers, since it is liquid metal which has relatively high coefficient of expansion. Hence, the slightest change in temperature is easily notable when it's used in a thermometer.

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Similar questions

Silver chloride and silver bromide are used in black and white photography.Which of the following are correct?

(i) Energy in form of light is required for the reaction to happen.

(ii) Both are endothermic reactions.

(iii) Only silver chloride decomposes into solid metal and non- metal gas.

(iv) Both compounds decompose into their respective metal and non- metal gases.

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