Hydrogen liquifies into a colorless liquid at a temperature of

-150⁰C

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-200⁰C

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-240⁰C

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-230⁰C

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Solution

The correct option is C
-240⁰C

Correct option(c)
Critical temperature: It is defined as the temperature above which a gas can not be liquified whatever pressure is applied.
For hydrogen, the critical temperature is -239.96⁰C.
To liquefy the gas temperature should be below -239.96⁰C which is -240⁰C
Final answer: Option(c)

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Similar questions

Name the temperature at which:

(a) a liquid changes into a gas (b) a solid changes into a liquid

At standard temperature and pressure, hydrogen is a colorless, odorless, and tasteless gas

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