EASY
Earn 100

What is enzyme catalysis?

Important Questions on Surface Chemistry

EASY
Which one of the following statements is incorrect about enzyme catalysis?
EASY
Match the catalysts (Column I) with products (Column II)
  Column I   Column II
  Catalyst   Product
A. V2O5 P. Polyethylene
B. TiCl4/AlMe3 Q. Ethanal
C. PdCl2 R. H2SO4
D. Iron Oxide S. NH3
EASY
Which of the following is an example of homogeneous catalysis?
EASY
CO(g) and H2(g) react to give different products in the presence of different catalysts. Which ability of the catalyst is shown by these reactions?
HARD
Ethanol is produced from glucose and fructose in the presence of enzyme
MEDIUM

Match List-I with List-II

  List-I (process)   List-II (catalyst)
(a) Deacon's process (i) ZSM-5
(b) Contact process (ii) CuCl2
(c) Cracking of hydrocarbons (iii)  Ni
(d) Hydrogenation of vegetable oils (iv) V2O5

Choose the most appropriate answer from the options given below-

MEDIUM
In the reaction, H2O2aqI-aqH2Ol+12O2g iodide ion acts as:
EASY
___ acts as a negative catalyst in the decomposition of H2O2.
HARD
Which of the following statements regarding an enzyme is INCORRECT?
EASY
Which of the following statements about enzyme catalysis is FALSE?
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
Explain the characteristics of enzyme catalysis.
MEDIUM
Which one of the following is an example for homogenous catalysis?
HARD
Give two examples for heterogeneous catalysis.
EASY
Which of the following is a character of catalyst?
MEDIUM
The catalyst used in the hydrogenation of oil is
EASY
An example for homogeneous catalysis is
MEDIUM

The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph

(a)
Question Image 

(b)
Question Image 

(c)
Question Image 

(d)
Question Image 

HARD
Which of the following is NOT CORRECT regarding enzyme catalysis?
EASY
Which of the following statements about enzymes is not correct?