Surface Chemistry Test

Result

Surface Chemistry Test - 74

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

The incorrect statement for physical absorption is :

A
adsorption is reversible at solid surface :

B
the amount adsorption increase on increasing the temperature

C
adsorption is spontaneous process

D
the enthalpy and entropy are negative .

Solution
Question 2
1 / -0

Shape selective catalysis is that reaction which s catalysed :

A
By enzyme

B
by zeolite

C
by platinum

D
by Zeigler - Natta Catalyst

Solution
Question 3
1 / -0

The method pf blood purification in human body is :

A
Electrophoresis

B
Electric osmosis

C
Dialysis

D
Coagulation
Question 4
1 / -0

The incorrect statement for physical absorption is :

A
adsorption is reversible at solid surface :

B
the amount adsorption increase on increasing the temperature

C
adsorption is spontaneous process

D
the enthalpy and entropy are negative .

Solution
Question 5
1 / -0

Bredigs arc method involves:

A
dispersion of metal

B
condensation of metal

C
dispersion as well as condensation

D
neither dispersion nor condensation

Solution
Question 6
1 / -0

Which of the following is an example of aerosol?

A
Paint

B
Milk

C
Sponge

D
Cloud

Solution
Question 7
1 / -0

Although nitrogen does not adsorb on surface at room temperature, it adsorbs on the same surface at 83K . Which one of the following statements is correct?

A
At 83 K, there is formation of monolayer

B
At 83 K, nitrogen is adsorbed as atoms

C
At 83 K, nitrogen molecules are held by chemical bonds

D
At 83 K, there is formation of multimolecular layers
Question 8
1 / -0

Chromatography is based on :

A
Physical adsorption

B
Chemical adsorption

C
Hydrogen bond

D
Adsorption

Solution
Question 9
1 / -0

On adding $$AgNO_{3}$$ solution to $$KI$$ solution, a negatively charged collodial sol will be formed in which of the following conditions?

A
$$100\ mL$$ of $$0.1\ M\ AgNO_{3}+100\ mL$$ of $$0.1\ M\ KI$$

B
$$100\ mL$$ of $$0.1\ M\ AgNO_{3}+50\ mL$$ of $$0.2\ M\ KI$$

C
$$100\ mL$$ of $$0.2\ M\ AgNO_{3}+100\ mL$$ of $$0.1\ M\ KI$$

D
$$100\ mL$$ of $$0.1\ M\ AgNO_{3}+100\ mL$$ of $$0.15\ M\ KI$$
Question 10
1 / -0

Which of the following statement is not true about the oil-in-water type emulsion ?

A
Addition of small amount of water, no separate layer of water is formed

B
Addition of a small amount of oil soluble dye renders the entire emulsion coloured

C
Addition of oil results in the formation of two layers

D
Addition of a small amount of an electrolyte increases the conductivity of the emulsion

Solution