under the influence of an electric field the particles in a

Under the influence of an electric field, the particles in a sol migrate towards cathode. The coagulation of the same sol is studied using $$NaCl,N{a_2}S{O_4}$$ and $$N{a_3}P{O_4}$$ solutions. Their coagulating values will be in maximum for :

A. $$NaCl$$

B. $$N{a_2}S{O_4}$$

C. $$N{a_3}P{O_4}$$

D. $${\text{same for all}}$$

Answer : $$NaCl$$

Solution :
The sol particles migrate towards cathode. So they are positively charged. Hence, anions would be effective in coagulation. Greater is the valence of effective ion, smaller will be its coagulating value.

Releted MCQ Question on
Physical Chemistry >> Surface Chemistry

Releted Question 1

Rate of physiorption increases with

A. decrease in temperature

B. increase in temperature

C. decrease in pressure

D. decrease in surface area

View Answer

Releted Question 2

Adsorption of gases on solid surface is generally exothermic because

A. enthalpy is positive

B. entropy decreases

C. entropy increases

D. free energy increases

View Answer

Releted Question 3

Lyophilic sols are

A. Irreversible sols

B. They are prepared from inorganic compound

C. Coagulated by adding electrolytes

D. Self-stabilizing

View Answer

Releted Question 4

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is : -

A. $$C{H_3}{\left( {C{H_2}} \right)_{15}}{N^ + }{\left( {C{H_3}} \right)_3}B{r^ - }$$

B. $$C{H_3}{\left( {C{H_2}} \right)_{11}}OSO_3^ - N{a^ + }$$

C. $$C{H_3}{\left( {C{H_2}} \right)_6}CO{O^ - }N{a^ + }$$

D. $$C{H_3}{\left( {C{H_2}} \right)_{11}}{N^ + }{\left( {C{H_3}} \right)_3}B{r^ - }$$

View Answer

Under the influence of an electric field, the particles in a sol migrate towards cathode. The coagulation of the same sol is studied using $$NaCl,N{a_2}S{O_4}$$ and $$N{a_3}P{O_4}$$ solutions. Their coagulating values will be in maximum for :

Releted MCQ Question on
Physical Chemistry >> Surface Chemistry

Rate of physiorption increases with

Adsorption of gases on solid surface is generally exothermic because

Lyophilic sols are

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is : -

Practice More Releted MCQ Question on
Surface Chemistry

Practice More MCQ Question on Chemistry Section

Under the influence of an electric field, the particles in a sol migrate towards cathode. The coagulation of the same sol is studied using $$NaCl,N{a_2}S{O_4}$$ and $$N{a_3}P{O_4}$$ solutions. Their coagulating values will be in maximum for :

Releted MCQ Question on Physical Chemistry >> Surface Chemistry

Rate of physiorption increases with

Adsorption of gases on solid surface is generally exothermic because

Lyophilic sols are

Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient condition is : -

Practice More Releted MCQ Question on Surface Chemistry

Practice More MCQ Question on Chemistry Section

Releted MCQ Question on
Physical Chemistry >> Surface Chemistry

Practice More Releted MCQ Question on
Surface Chemistry