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The fresh precipitate can be transformed...

The fresh precipitate can be transformed in colloidal state by

A

peptization

B

coagulation

C

diffusion

D

none of these

Text Solution

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The correct Answer is:
A
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When a fresh precipitate is turned black in colloidal form, the process is called:

each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below : STATEMENT-1: The conversion of fresh precipitate to colloidal state is called peptization. STATEMENT-2: It is caused by addition of common ions.

By which method precipitate is converted into colloids?

OP TANDON-THE COLLOIDAL STATE-Objective Questions
  1. The smog is essentially caused by the presence of :

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  2. Which one of the following is most effective in causing the coagulatio...

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  3. The fresh precipitate can be transformed in colloidal state by

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  4. Oils and fats are obtained by saponification potassium steatrate. Its ...

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  5. Which one of the following forms micelles in aqueous solution above ce...

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  6. Muddy water can be purified through coagulation using

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  7. The dispersed phase in colloidal iron (III) hydroxide and collodial go...

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  8. An emulsifier is a substance which :

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  9. Gold number is associated with

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  10. Which one of the following is a false statement?

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  11. The presence of electric charge on colloidal particles is indicated by...

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  12. Which of the following properties are characteristic of lyophobic sols...

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  13. In a electrical field, the particles of a colloidal system move toward...

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  14. Cetyl trimethyl ammonium chloride is which type of detergent ?

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  15. The effective ion used in clarification of water is :

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  16. The number of moles of lead nitrate needed to coagulate 2 mole of coll...

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  17. Among the electrolytes Na, SO4 , CaCl4 , Al2(SO4)3 and NH4 Cl, the m...

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  18. A micelle formed during the cleansing aciton of soap is

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  19. The dispersed phase and dispersion medium in soap lather are respectiv...

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  20. Which one of the following is correctly matched?

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