by DeepWebLabs
NEET
Chemistry

Adsorption And Absorption

Low Priority
Consistency: 15%
Weightage: 3 / 20 Yrs

High-Yield Trend

1
2016
1
2007
1
2006

Questions
3 MCQs

01
PYQ 2006
easy
chemistry ID: neet-200

A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with a slope equal to:

1. log

2. n

3. 1n

4. log 1/k

1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2007
easy
chemistry ID: neet-200

The Langmuir adsorption isotherm is deduced using the assumption:

1. The adsorption takes place in multilayers
2. The adsorption sites are equivalent in their ability
to adsorb the particles
3. The heat of adsorption varies with coverage
4. The adsorbed molecules interact with each other

1
(1)
2
(2)
3
(3)
4
(4)
03
PYQ 2016
medium
chemistry ID: neet-201

The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the:

1. rate is proportional to the surface coverage

2. rate is inversely proportional to the surface coverage

3. rate is independent of the surface coverage

4. rate of decomposition is very slow

1
(1)
2
(2)
3
(3)
4
(4)