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Which one of the following substance giv...

Which one of the following substance gives a positively charged sol?

A

Gold

B

A metal sulphide

C

Ferric hydroxide

D

An acidic dye

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The correct Answer is:
C
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MOTION-SURFACE CHEMISTRY-Exercise - 1
  1. The separation of colloidal particles from those of molecular dimensio...

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  2. The impurities present in rain water possess ……..charge.

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  3. Which one of the following substance gives a positively charged sol?

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  4. Which one of the following will have the highest coagulating power for...

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  5. A metal sulphide sol. can be flucculated by which one of the following...

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  6. Ferric chloride is applied to stop bleeding cut because

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  7. A colloidal solution is subjected to an electrical field. The particle...

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  8. Which of the following methods is used for sol destruction?

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  9. The ability of ion to bring about coagulation of a given collidal solu...

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  10. Flocculation value is expressed in terms of -

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  11. Which of the following has largest protecting power -

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  12. The coagulation of 10cm^(3) of gold sol by 1 ml 10% NaCl solution is c...

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  13. Gelatin protects

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  14. Gold number is minimum in case of……………

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  15. The gold numbers of four protective colloids O,P,Q and R are 0.005, 0....

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  16. Which plot is the adsorption isobar for chemisorption where x is the a...

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  17. For adsorption of gas on solid suface. The plots of logx//m versus log...

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  18. Adsorption is accompanied by

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  19. which gas will be adsorbed on a solid to greater extent ?

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  20. Which of the following factors affects the adsorption of a gas on soli...

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