HARD
Earn 100

Define selectivity of a solid catalyst. Give an example.
Important Questions on Surface Chemistry
HARD


EASY

MEDIUM

MEDIUM

EASY
When any solid substance is kept in contact with liquid or gas, then liquid or gas are more adsorbed on the surface of solid rather than bulk. The process is known as adsorption. It is different from absorption. Many gaseous reactions occur in the presence of solid catalyst. Catalyst is a chemical substance which change the rate of reaction without undergoing itself change. This phenomenon is known as catalysis.
Write any chemical equation of heterogeneous catalysis.

EASY


EASY

EASY

EASY

EASY

EASY

MEDIUM
Match List with List
List (process) | List (catalyst) | ||
(a) | Deacon's process | (i) | |
(b) | Contact process | (ii) | |
(c) | Cracking of hydrocarbons | (iii) | |
(d) | Hydrogenation of vegetable oils | (iv) |
Choose the most appropriate answer from the options given below-

EASY

EASY

MEDIUM

EASY
Column I | Column II | ||
---|---|---|---|
Catalyst | Product | ||
A. | P. | Polyethylene | |
B. | Q. | Ethanal | |
C. | R. | ||
D. | Iron Oxide | S. |

EASY

EASY

