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Which of the following substance gives a...

Which of the following substance gives a positively charged sol?

A

Gold

B

aresenius sulphide

C

starch

D

ferric hydroxide

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The correct Answer is:
D
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OP TANDON-THE COLLOIDAL STATE-Objective Questions
  1. Which of the following reactions is not used for the preparation of a ...

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  2. When freshly precipitated Fe(OH)(3) is boiled with water in the presen...

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

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  4. Brownian movement was discovered by :

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  5. The cause of Brownian-movement is

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  6. Tyndall phenomenon is exhibited by

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  7. The sky looks blue due to ………… effect.

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  8. Tyndall effect in colloidal solution is due to

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  9. Migration of colloidal particles under the influence of electrie field...

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  10. the stability of lyophilic colloids is due to

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  11. Greater the valency, the higher is the coagulating power of ion.'This ...

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  12. Bleeding is stopped by the application of ferric-chloride this is beca...

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  13. The property of colloidal suspension used to determine the nature of c...

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  14. When excess of electrolyte is added to a colloid it :

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  15. The colloidal solutions of gold prepared by different methods have dif...

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  16. The capacity of an ion to coagulate a colloidal solution depends on

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  17. Lyophilic sols are more stable than lyophobic sols because

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  18. which of the following will have the highest coagulating power for As(...

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  19. A negatively charged suspension of clay in water will need for precipi...

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  20. Which of the following ielectrolytes is least effective in causing flo...

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