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Which of the following methods to prepar...

Which of the following methods to prepare sol, the colloidal particles will be negatively charged?

A

`100 ml " "2 xx 10^(-6) M-AgNO_(3) +100 ml " of "4xx10^(-5)M-KI`

B

Addition of little KOH in freshly prepared precipitate of `Al(OH)_(3)`.

C

Addition of little HCl in freshly prepared precipitate of `Al(OH)_(3)`.

D

Gold sol by Bredig-Arc method.

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The correct Answer is:
A, B, D
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GRB PUBLICATION-SURFACE CHEMISTRY-MULTIPLE OBJECTIVE TYPE
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  2. Which of the following reactions can result in formation of a colloida...

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  3. Which of the following methods to prepare sol, the colloidal particles...

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  4. Which of the following is (are) lyophobic colloids?

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  5. Which of the following are correctly matched?

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  6. Which is not correct for physical adsorption ?

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  7. Which of the following statements regarding adsorption is/are correct?

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  8. Which of the following is not a characteristic of chemisorption?

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  9. The diameter of colloidal particle is of the order

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  10. Which of the following colloidal solutions contain negatively charged ...

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  11. Which of the following are examples of aerosols?

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  12. Which of the following statements are true for physisoption?

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  13. Which of the following are hydrophobic sols?

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  14. If Cl(2) gas is enclosed in presence of powdered charcoal in a closed...

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  15. When negatively charged colloids like As(2)S(3) sol is added to positi...

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  16. Which of the following are incorrect statements?

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  17. Which of the following are multimolecular colloids?

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  18. The origin of charge on colloidal solution is :

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  19. Which of the following are based on Tyndall effect?

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  20. The correct statement(s) pertaining to the adsorption of a gas on a so...

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