Which one is false in the following statements?
Which one is false in the following statements?
Option 1 -
A catalyst is specific in its action
Option 2 -
A very small amount of the catalyst alters the rate of a reaction
Option 3 -
The number of free vacancies on the surface of the catalyst increases on sub-division
Option 4 -
Nickel is used as a catalyst in the manufacture of ammonia
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1 Answer
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Correct Option - 4
Detailed Solution:Fe acts a catalyst and Mo acts as promoter in Haber's process.
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The process of settling of colloidal particles is
In physisorption multimolecular layers are formed on solid surface.
Emulsion is a colloidal solution of liquid in liquid.
Haemoglobin is a positive colloid. Hence greater is the charge of anion, more effective will be the coagulation of haemoglobin.
Therefore,
Correct order of coagulating power is
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