First slide

Hydrogen

Question

Statement I: D₂ is more rapidly adsorbed on the surface than H₂.
Statement II : Vander Waal’s forces of attraction are more in D₂ than in H₂

Easy

A

Statement I and Statement II are true.
B

Statement I is true and statement II is false.
C

Statement I is false and Statement II is true.
D

Statement I and Statement II are false.

Solution

$\xrightarrow{{\;\;\;{H_2},{D_2}\;\;}}$

As the molecular weigth ↑es,
Surface area ↑es,
and hence vander waal's force of attractions ↑es
• The adsorption phenomina (physical) depends upon the vander waal's force of attraction and surface area .
• Therefore D2 is more rapidly adsored on surface than H2, As surface area of D2 grater than that of H2, & hence vander waal's force of attractions are more in D2 than in H2 with catalyst

$\therefore$
Statement I and Statement II are true.

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