Embibe Experts Solutions for Chapter: Surface Chemistry, Exercise 1: JEE Main - 1 September 2021 Shift 2

The number of statement/s which are the characteristics of physisorption is ___________.

A. It is highly specific in nature

B. Enthalpy of adsorption is high

C. It decreases with increase in temperature

D. It results into unimolecular layer

E. No activation energy is needed

The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph

(a)
 

(b)
 

(c)
 

(d)
 

The number of incorrect statement/s from the following is/are

A. Water vapours are adsorbed by anhydrous calcium chloride.

B. There is a decrease in surface energy during adsorption.

C. As the adsorption proceeds, $\mathrm{\Delta H}$ becomes more and more negative.

D. Adsorption is accompanied by decrease in entropy of the system.

Which of the following salt solutions would coagulate the colloid soloution formed when ${\mathrm{FeCl}}_3$ is added to $\mathrm{NaOH}$ solution, at the fastest rate?

The graph of $\log \frac{\mathrm{x}}{\mathrm{m}}\mathrm{vs} \log \mathrm{p}$ for an adsorption process is a straight line inclined at an angle of $45°$ with intercept equal to $0.6020$. The mass of gas adsorbed per unit mass of adsorbent at the pressure of $0.4 \mathrm{atm}$ is _____$\times {10}^{-1}$ (Nearest integer)

Given : $\log 2=0.3010$

Adding surfactants in non polar solvent, the micelles structure will look like

(a)

(b)

(c)

(d)

Match List I with List II

Choose the correct answer from the options given below:

In figure, a straight line is given for Freundrich Adsorption $(y=3\mathrm{x}+2.505)$. The value of $\frac{1}{\mathrm{n}}$ and $\mathrm{logK}$ are respectively.