Byju's Answer
Standard XII
Chemistry
Coagulation
The flocculat...
Question
The flocculation value of an electrolyte is
A
The amount of electrolyte in grams required to bring about coagulation of one litre of colloidial sol
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B
The amount of electrolyte in milligrams to bring about coagulation of 10 ml of the colloidal sol
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C
The amount of the electrolyte in millimoles required to bring about the coagulation of 1 litre of the colloidal sol.
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D
The reciprocal of coagulating power.
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Solution
The correct option is
C
The amount of the electrolyte in millimoles required to bring about the coagulation of 1 litre of the colloidal sol.
By definition.
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Similar questions
Q.
Which of the following statements are correct?
1. The smaller the gold number of lyophobic colloid, the larger will be its protective power.
2. Lyophilic sols, in contrast to lyophobic sols are easily coagulated on the addition of small amounts of electrolytes.
3. Ferric chloride solution is used to stop bleeding from a fresh cut because it coagulates the blood.
4. The flocculation value of arsenious sulfide sol is independent of the anion of the coagulating electrolyte.
Q.
The amount of electrolytes required coagulate a given amount of
A
g
I
colloidal solution (
−
ve charge) will be in the order:
Q.
The coagulation values in millimoles per litre of the electrolyte for the coagulation of
A
s
2
S
3
sol are given as follows:
I.
N
a
C
l
(
52
)
II.
B
a
C
l
2
(
0.69
)
III.
M
g
S
O
4
(
0.22
)
The correct order of coagulating power is:
Q.
For coagulation of
250
mL
of
F
e
(
O
H
)
3
sol,
2
mL
of
1
M
N
a
2
S
O
4
electrolyte is required. What is the coagulating value of
N
a
2
S
O
4
electrolyte?
Q.
The most effective electrolyte, in the coagulation of a positively colloidal solution is:
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Coagulation
Standard XII Chemistry
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