NEET UG CHEMISTRY MCQ: STATES OF MATTER

1 Medium

1 of 1

Analyzing +4 | -1

Statement I: A certain amount of energy called activate energy

\left(E_a\right)

is required to move into a hole.

Statement II: On increasing temperature,

E_a

is avalabe and liquid can flow more easily thus, viscosity decrease

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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 Statement I and Statement II are correct and Statement II is the correct explanation of Statement I) is correct because the activation energy is required for movement, and increasing temperature provides this energy, thus decreasing viscosity.

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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?