HARD
12th Tamil Nadu Board
IMPORTANT
Earn 100

Why are lyophilic colloidal sols are more stable than lyophobic colloidal sol.

Important Questions on Surface Chemistry

HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 10
Addition of Alum purifies water. Why?
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 11
What are the factors which influence the adsorption of a gas on a solid?
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 12
What are enzymes? Write a brief note on the mechanism of enzyme catalysis.
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 13
What do you mean by activity and selectivity of catalyst?
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 14
Describe some feature of catalysis by Zeolites.
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 15
Give three uses of emulsions.
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 16
Why does bleeding stop by rubbing moist alum
HARD
12th Tamil Nadu Board
IMPORTANT
Chemistry Standard 12 Vol II>Chapter 3 - Surface Chemistry>EVALUATION>Q 17
Why is desorption important for a substance to act as good catalyst?