In the Dewar's method of separation of noble gases, the mixture of noble gases is kept in contact with coconut charcoal at $173 \mathrm{~K}$ which one of the following gaseous mixtures is not adsorbed on to the charcoal?

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Aicharya · Accepted Answer

Only $\mathrm{He}$ and $\mathrm{Ne}$ are remained unadsorbed on the coconut charcoal at $-100^{\circ} \mathrm{C}(173 \mathrm{~K})$ as their boiling points are less than $-100^{\circ} \mathrm{C} .(\mathrm{He}=4 \mathrm{~K}, \mathrm{Ne}=27 \mathrm{~K})$

In the Dewar's method of separation of noble gases, the mixture of noble gases is kept in contact with…

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