The lightest gas which is non-inflammable is:

H_{2}

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H e

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N_{2}

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A

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Solution

The correct option is B $H e$
$H_{2}$ is the lightest gas but it is inflammable.
$H e$ is the next lightest gas and it is non-inflammable.

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Similar questions

Q. Gases

H_{2} H e O_{2} N_{2}

Critical temperature(K) 33.2 5.3 154.3 126

From the above data what whould be the order of liquefaction of these gases?
Start writing the order from the gas liquefying first.

Gases posses charcteristic critical temperature which depends upo the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.

$\begin{matrix} G a s e s & H_{2} & H e & O_{2} & N_{2} C r i t i c a l t e m p e r a t u r e i n K e l v i n & 33.2 & 5.3 & 154.3 & 126 \end{matrix}$

From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first

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The lightest gas which is non-inflammable is:

The correct option is B HeH2 is the lightest gas but it is inflammable.He is the next lightest gas and it is non-inflammable.

The correct option is B $H e$
$H_{2}$ is the lightest gas but it is inflammable.
$H e$ is the next lightest gas and it is non-inflammable.