32
MCQ (Multiple Correct Answer)
Which of the following substances will precipitate the negatively charged emulsions?
A
KCl
B
Glucose
C
Urea
D
NaCl
33
MCQ (Multiple Correct Answer)
Which of the following colloids cannot be coagulated easily?
A
Lyophobic colloids
B
Irreversible colloids
C
Reversible colloids
D
Lyophilic colloids
34
MCQ (Multiple Correct Answer)
What happens when a Lyophilic sol is added to a Lyophobic sol?
A
Lyophobic sol is protected
B
Lyophilic sol is protected
C
Film of lyophilic sol is formed over lyophobic sol
D
Film of Iyophobic sol is formed over Iyophilic sol
35
MCQ (Multiple Correct Answer)
Which phenomenon occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented?
A
Reverse osmosis takes place
B
Electroosmosis takes place
C
Dispersion medium begins to move
D
Dispersion medium becomes stationary
36
MCQ (Multiple Correct Answer)
In a reaction, catalyst changes ............ .
A
physically
B
qualitatively
C
chemically
D
quantitatively