Surface Chemist...

The graph of the effect of catalyst on activation energy is given below. Fill up the blanks $$X$$ and $$Y$$ with appropriate statements.

Which of the following factors are responsible for the increase in the rate of a surface catalyzed reaction?
(i) A catalyst provides proper orientation for the reactant molecules to react.
(ii) The heat of adsorption of reactants on a catalyst helps reactant molecules to overcome activation energy.
(iii) The catalyst increases the activation energy of the reaction.

Which is a characteristic of a catalyst?

The volume of gases $${ H }_{ 2 },\ { CH }_{ 4 },\ { CO }_{ 2 }$$, and $${ NH }_{ 3 }$$ adsorbed by $$1 g $$ of charcoal at $$288K$$ are in the order:

Which of the following statements about the catalyst is true?

The nature of colloidal solution of methylene blue and haemoglobin is _______ and ________ respectively.

When $$ AgNO_3 (aq) $$ reacts with excess of iodine, we get :

Artificial smoke screens are made by  

Which of the following methods is used for sol destruction?

Adam's catalyst is