Which of the following can stabilize gold sol | vedclass

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(B) Gold sol is a lyophobic sol,which is unstable and easily coagulated by electrolytes like $NaCl$. Gelatin is a lyophilic colloid. When added to a l

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Gelatin

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(B) Gold sol is a lyophobic sol,which is unstable and easily coagulated by electrolytes like $NaCl$. Gelatin is a lyophilic colloid. When added to a lyophobic sol,lyophilic colloids form a protective layer around the lyophobic particles,preventing their coagulation by electrolytes. This phenomenon is known as the protective action of colloids.

Which of the following can stabilize gold sol from coagulation by $NaCl$ solution?

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