MEDIUM
Earn 100

Explain the catalytic reforming of heptane.

Important Questions on Energy

EASY
Explain the following in context of solid catalysts: Selectivity.
EASY
What do you mean by selectivity of a catalyst?
EASY
Explain the following in context of solid catalysts: Activity.
EASY
Give reasons for the following: Catalyst is more effective as powdered state
MEDIUM
What is shape-selective catalysis? Describe some features of catalysis by zeolites.
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
Describe some feature of catalysis by Zeolites.
MEDIUM
What do you understand by shape-selective catalysis? Why are zeolites good shape-selective catalysts?
EASY
According to the adsorption theory of catalysis, the rate of reaction increases because
MEDIUM
The catalysts whose working depend on the pore structure of catalyst and shape and size of reactant molecules are known as shape-selective catalysts. _____ are good shape-selective catalyst because of honey comb like structure.
MEDIUM
What do you mean by activity and selectivity of catalysts?
HARD
A catalyst has a total surface area of 103 cm2 and adsorption sites available on it are 6×1015 sites cm-2H2 gas is adsorbed on this surface and it occupies  only 5% of the available sites of the total surface area. On heating, the catalyst releases H2 and all the H2 adsorbed occupies 2.46 mL at 0.03 atm at 300 K. The number of H2 molecules adsorbed on each site is equal to
MEDIUM
Which of the following statements are correct about solid catalyst?
MEDIUM
Which of the following statements are correct about solid catalyst?
MEDIUM
Which of the following statements are correct about solid catalyst?
HARD
The active site of an enzyme is formed by
HARD

Which of the following graphs correctly represents the action of catalysts on the concentration of X and A in given reaction?

X A

 

HARD
Shape selective catalysis is catalysed through:
EASY
Catalysts are generally used in finely divided state because
HARD
Write the name of catalyst which convert methanol into gasoline.