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Milk can be preserved by adding a few dr...

Milk can be preserved by adding a few drops of

A

Formic acid solution

B

Formaldehyde solution

C

Acetic acid solution

D

Acetaldehyde solution

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-SURFACE CHEMISTRY -Assignment Section - A (Objective type questions)
  1. An emulsifier is an agenet which

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  2. Gelatin is often used as an ingredient in the manufacture of ice -crea...

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  3. Milk can be preserved by adding a few drops of

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  4. When a river enters the sea, a delta is formed . Formation of delta is...

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  5. Which statement is incorrect ?

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  6. The potential differnce between the fixed particles layer and the diff...

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  7. When dilute aqueous solution of AgNO3 (excess) is added to KI solution...

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  8. In the preparation of AgI sol, the excess fo AgNO(3) is added to potas...

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  9. Which of the following method is not employed for the purification of ...

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  10. During purification of colloidal sol by ultracentrifugation which of t...

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  11. A positive colloid will be formed when

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  12. Which of the following has the highest and lowest cogulating power? (A...

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  13. Most effective coagulant for a colloidal solution of arsenic sulphide ...

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  14. Flocculation value is expressed in terms of

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  15. Colloidal particles in soap sol carry

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  16. Which of the following metal sols. cannot be prepared by Bredig’s arc ...

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  17. When SO(2) is bubbled into H(2)S gas, colloidal sol is formed. What ty...

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  18. The stabilization of a dispersed phase in a lyopobic colloid is due to

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  19. When FeC3 solution is added to NaOH a negatively charged sol is obtai...

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  20. The example of homogeneous catalysis is

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