JEE Main 2019 (Online) 11th January Evening Slot | Surface Chemistry Question 78 | Chemistry

JEE Main 2019 (Online) 11th January Evening Slot

MCQ (Single Correct Answer)

-1

Among the colloids cheese (C), milk (M), and smoke (S), the correct combination of the dispersed phase and dispersion medium, respectively is :

C : liquid in solid ; M : liquid in liquid ; S : solid in gas

C : liquid in solid ; M : liquid in solid ; S : solid in gas

C : solid in liquid ; M : liquid in liquid ; S : gas in solid

C : solid in liqid ; M : solid in liquid ; S : solid in gas

JEE Main 2019 (Online) 11th January Morning Slot

MCQ (Single Correct Answer)

-1

An example of solid sol is :

Butter

Hair cream

Gem stones

Paint

JEE Main 2019 (Online) 10th January Evening Slot

MCQ (Single Correct Answer)

-1

Haemoglobin and gold sol are examples of :

positively charged sols

negatively charged sols

Positively and negatively charged sols, respectively

negatively and positively charged sols, respectively

JEE Main 2019 (Online) 9th January Evening Slot

MCQ (Single Correct Answer)

-1

For coagulation of arsenious sulphate sol, which one of the following salt solution will be most effective ?

BaCl₂

AlCl₃

NaCl

Na₃PO₄

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