Preparation Methods of Colloids
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CHXII05:SURFACE CHEMISTRY

320850 Which of the following metal sols cannot be prepared by Bredig's arc method?

1 Copper
2 Potassium
3 Gold
4 Platinum
CHXII05:SURFACE CHEMISTRY

320851 Colloidal sulphur is obtained when

1 Sulphur is heated gradually to high temperature
2 Sulphur is heated with dilute sulphuric acid
3 Sulphur is warmed with carbon disulphide
4 Hydrogen sulphide is passed through an aqueous solution of nitric acid
CHXII05:SURFACE CHEMISTRY

320852 \(\mathrm{As}_{2} \mathrm{O}_{3}+3 \mathrm{H}_{2} \mathrm{~S} \rightarrow \mathrm{As}_{2} \mathrm{~S}_{3}(\mathrm{Sol})+3 \mathrm{H}_{2} \mathrm{O}\), the principle involved in the preparation of above colloidal solution is

1 Oxidation
2 Reduction
3 Double decomposition
4 Hydrolysis
CHXII05:SURFACE CHEMISTRY

320853 Purple of cassius is

1 Colloidal solution of gold
2 Colloidal solution of silver
3 Colloidal solution of platinum
4 Ability to produce lather with water
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CHXII05:SURFACE CHEMISTRY

320850 Which of the following metal sols cannot be prepared by Bredig's arc method?

1 Copper
2 Potassium
3 Gold
4 Platinum
CHXII05:SURFACE CHEMISTRY

320851 Colloidal sulphur is obtained when

1 Sulphur is heated gradually to high temperature
2 Sulphur is heated with dilute sulphuric acid
3 Sulphur is warmed with carbon disulphide
4 Hydrogen sulphide is passed through an aqueous solution of nitric acid
CHXII05:SURFACE CHEMISTRY

320852 \(\mathrm{As}_{2} \mathrm{O}_{3}+3 \mathrm{H}_{2} \mathrm{~S} \rightarrow \mathrm{As}_{2} \mathrm{~S}_{3}(\mathrm{Sol})+3 \mathrm{H}_{2} \mathrm{O}\), the principle involved in the preparation of above colloidal solution is

1 Oxidation
2 Reduction
3 Double decomposition
4 Hydrolysis
CHXII05:SURFACE CHEMISTRY

320853 Purple of cassius is

1 Colloidal solution of gold
2 Colloidal solution of silver
3 Colloidal solution of platinum
4 Ability to produce lather with water
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CHXII05:SURFACE CHEMISTRY

320850 Which of the following metal sols cannot be prepared by Bredig's arc method?

1 Copper
2 Potassium
3 Gold
4 Platinum
CHXII05:SURFACE CHEMISTRY

320851 Colloidal sulphur is obtained when

1 Sulphur is heated gradually to high temperature
2 Sulphur is heated with dilute sulphuric acid
3 Sulphur is warmed with carbon disulphide
4 Hydrogen sulphide is passed through an aqueous solution of nitric acid
CHXII05:SURFACE CHEMISTRY

320852 \(\mathrm{As}_{2} \mathrm{O}_{3}+3 \mathrm{H}_{2} \mathrm{~S} \rightarrow \mathrm{As}_{2} \mathrm{~S}_{3}(\mathrm{Sol})+3 \mathrm{H}_{2} \mathrm{O}\), the principle involved in the preparation of above colloidal solution is

1 Oxidation
2 Reduction
3 Double decomposition
4 Hydrolysis
CHXII05:SURFACE CHEMISTRY

320853 Purple of cassius is

1 Colloidal solution of gold
2 Colloidal solution of silver
3 Colloidal solution of platinum
4 Ability to produce lather with water
Join With Us for More Updates
CHXII05:SURFACE CHEMISTRY

320850 Which of the following metal sols cannot be prepared by Bredig's arc method?

1 Copper
2 Potassium
3 Gold
4 Platinum
CHXII05:SURFACE CHEMISTRY

320851 Colloidal sulphur is obtained when

1 Sulphur is heated gradually to high temperature
2 Sulphur is heated with dilute sulphuric acid
3 Sulphur is warmed with carbon disulphide
4 Hydrogen sulphide is passed through an aqueous solution of nitric acid
CHXII05:SURFACE CHEMISTRY

320852 \(\mathrm{As}_{2} \mathrm{O}_{3}+3 \mathrm{H}_{2} \mathrm{~S} \rightarrow \mathrm{As}_{2} \mathrm{~S}_{3}(\mathrm{Sol})+3 \mathrm{H}_{2} \mathrm{O}\), the principle involved in the preparation of above colloidal solution is

1 Oxidation
2 Reduction
3 Double decomposition
4 Hydrolysis
CHXII05:SURFACE CHEMISTRY

320853 Purple of cassius is

1 Colloidal solution of gold
2 Colloidal solution of silver
3 Colloidal solution of platinum
4 Ability to produce lather with water
For More Updates join with Us