EASY
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How will you prepare colloidal solution of gold?

Important Questions on Adsorption and Colloids

MEDIUM
Which of the following statements about colloids is false?
HARD
The correct statement(s) about surface properties is(are)
EASY
On which of the following properties, does the coagulating power of an ion depend?
EASY
When a sulphur sol is evaporated sulphur is obtained. On mixing with water sulphur sol is not formed. The sol is
MEDIUM
The coagulating power of electrolytes having ions Na+,  Al3+ and Ba2+ for arsenic sulphide sol increases in the order,
MEDIUM
The correct statement s related to colloids is(are)
MEDIUM
The correct option among the following is.
EASY
What is peptisation ? Give one example.
EASY

Write short note on the following-

Peptisation

MEDIUM
Among the following, the correct statement is:
MEDIUM
Bredig's arc method is used to prepare which of the following sol?
EASY
The most appropriate method of making egg-albumin sol is:
EASY
For coagulation of arsenious sulphide sol, which of the following salt solutions will be most effective?
EASY
Colloidal solution commonly used in treatment of skin diseases is:
MEDIUM
As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order:
EASY
Coagulation is just the reverse of _____
MEDIUM
25 mL of silver nitrate solution (1M) is added dropwise to 25 mL of potassium iodide (1.05 M) solution. The ion(s) present in very small quantity in the solution is/are
EASY
Using Bredig's arc method, which of the following metallic sols cannot be prepared _______