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Cryogenics deal with which of the following mentioned?

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Cryogenics deal with which of the following mentioned?

(a) Production and utilization of low temperatures from 0 K to 123K

(b) Production and utilization of low temperatures from 0 K to 273.15 K

(c) Production and utilization of high temperatures from 273.15Kto 1000K

(d) Production and utilization of high temperatures from 273.15K to 500K

The question was posed to me during an online exam.

The question is from Inorganic Chemicals topic in section Chemical Industries of Chemical Technology

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Correct choice is (a) Production and utilization of low temperatures from 0 K to 123K

Easiest explanation: Cryogenics deal with sub zero temperatures the least mentioned in the options is 0K to 123K.

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