181. At equilibrium the rate of disappearing of reactants and the rate of formation of products are?
A. Equal
B. Different
C. Very different
D. Almost equal
182. The change of concentrations of reactants and products with time is called?
A. Rate of equilibrium
B. Forward rate
C. Rate of reaction
D. Backward rate
183. When at equilibrium there is no motion what so ever, it is called?
A. Dynamic
B. Permanent
C. Dead
D. Static
184. All types of chemical equilibra and equilibra between physical states are called?
A. Static
B. Dynamic
C. Permanent
D. Temporary
185. At equilibrium, as long as the volume of the container and the temperature of the chemical system remains unchanged, the concentrations of reactants and products?
A. Changes
B. Keep on changing
C. Do not change
D. Is fixed
186. At the beginning the concentrations of reactants and products change?
A. Sharply
B. Rapidly
C. Slowly
D. Smoothly
187. The concentrations of the active masses of the reacting species and the rate of reaction are?
A. Related
B. Interdependent
C. Independent
D. Not related
188. Law of mass action was put forward by?
A. Waage
B. Einstin
C. Guldberg
D. Goldberg and wage
189. The rate at which a chemical reaction proceeds and the product of the active masses of the reacting substances are?
A. Directly related
B. Indirectly related
C. Related
D. Not related
190. A homogeneous mixture of two or more than two substance whose proportions can be varied within certain limits is called?
A. Solution
B. Mixture
C. Element
D. Compound
