NEET UG CHEMISTRY MCQ: STATES OF MATTER

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Statement I: A lighter gas diffuses more rapidly than a heavier gas.

Statement II: At a given temperature, rate of diffusion of a gas is inversely proportional to square root of its density.

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Correct option: A

Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

Option A (Both statements are correct and Statement II is the correct explanation of Statement I) is correct because Graham's law of diffusion states that the rate of diffusion is inversely proportional to the square root of the density, which explains why lighter gases diffuse more rapidly.

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If for the gases, the critical temperatures are mentioned below i.e.

\begin{array}{cccccccccccccccccccc} {\underline {{\text{Gas}}} }&{\underline {\,{\text{Critical}}\,\,{\text{temperature}}} } \\ {\text{A}}&{{T_{{C_1}}}} \\ {\text{B}}&{{T_{{C_2}}}} \\ {\text{C}}&{{T_{{C_3}}}} \\ {\text{D}}&{{T_{{C_4}}}} \end{array}

{T_{{C_1}}} > {T_{{C_2}}} > {T_{{C_3}}} > {T_{{C_4}}}

Which of the following can be predicted Which of the following statements is incorrect? Among the following metals interatomic forces are probably weakest in: The interaction energy of London forces between two particles is proportional to

{r^x}

, where

r

is the distance between the particles. The value of

x

is In deriving the kinetic equation we make use of the root mean square speed of the molecules which is: Which force is strongest?