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Stability of Fully Filled and Half Filled Orbitals

Which of the ...

Question

Which of the following noble gases has the highest Van der Waal's force of attraction?

A

A r

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B

N e

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C

X e

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D

H e

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Solution

The correct option is A $X e$
Van der Waal's force of attraction increases down the group. Ease of liquefaction increases down the group.

$X e$ has the highest van der Waal's force of attraction because of its largest size.

Hence, option $C$ is correct.

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Q. Assertion :The boiling points of noble gases increases from

H e

X e

Reason: The interatomic van der Waals attractive forces increase from

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X e

Q. The forces of attraction between the elemental gaseous molecules are called Van der Waal's forces of attraction.

Q. Weakest van der Waals forces of attraction is seen in which of the following gases?

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Q. The van der Waal's coefficient of the inert gases

H e, A r

X e

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Inert Gas	$a (a t m d m^{6} m o l^{- 2})$	$b (10^{- 2} d m^{3} m o l^{- 1})$
$H e$	$0.34$	$2.38$
$A r$	$1.337$	$3.20$
$X e$	$4.137$	$5.16$

Choose the appropriate pair to complete the following statement. "The increase in the value of

^{'} a^{'}

signifies the increasing importance of ..... interaction while increase in the value of

^{'} b^{'}

is due to ....."

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