JEE Main 2021 (Online) 27th August Evening Shift | Surface Chemistry Question 36 | Chemistry

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JEE Main 2021 (Online) 27th August Evening Shift

MCQ (Single Correct Answer)

-1

Lyophilic sols are more stable than lyophobic sols because :

there is a strong electrostatic repulsion between the negatively charged colloidal particles.

the colloidal particles have positive charge.

the colloidal particles have no charge.

the colloidal particles are solvated.

JEE Main 2021 (Online) 27th August Morning Shift

MCQ (Single Correct Answer)

-1

Acidic ferric chloride solution on treatment with excess of potassium ferrocyanide gives a Prussian blue coloured colloidal species. It is :

Fe₄[Fe(CN)₆]₃

K₅Fe[Fe(CN)₆]₂

HFe[Fe(CN)₆]

KFe[Fe(CN)₆]

JEE Main 2021 (Online) 27th August Morning Shift

MCQ (Single Correct Answer)

-1

Tyndall effect is more effectively shown by :

true solution

lyophilic colloid

lyophobic colloid

suspension

JEE Main 2021 (Online) 26th August Evening Shift

MCQ (Single Correct Answer)

-1

The sol given below with negatively charged colloidal particles is :

FeCl₃ added to hot water

KI added to AgNO₃ solution

AgNO₃ added to KI solution

Al₂O₃.xH₂O in water

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