Which one of the following statements is FALSE for hydrophilic sols ?

Question:
Which one of the following statements is FALSE for hydrophilic sols ?

These sols are reversible in nature
The sols cannot be easily coagulated
They do not require electrolytes for stability.
Their viscosity is of the order of that of $\mathrm{H}_{2} \mathrm{O}$

Correct Option: , 4

Solution:

Fact base

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