Assertion : $N H_{3}$ gas is more easily liquefiable than $C O_{2}$ gas. Reason: $N H_{3}$ gas has higher critical temperature than that of $C O_{2}$ gas.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Given,
A: ${N H}_{3}$ gas is more easily liquefiable than ${C O}_{2}$ gas.
R: ${N H}_{3}$ gas has higher critical temperature than that of ${C O}_{2}$
We know, ${N H}_{3}$ having hydrogen bonding leads to high strength of bond than ${C O}_{2}$ .
${N H}_{3}$ has higher critical temperature than ${C O}_{2}$
Now, we also know,
gas having more critical temperature is more easier to liquify.
A and R is true also R is the correct explanation for A.

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Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

H_{2}

H e

(1 + \frac{P b}{R T})

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