The rate of reaction___________________?
(A) Increases as the reaction proceeds
(B) Decreases as the reaction proceeds
(C) Remains the same as the reaction proceeds
(D) May decrease or increase as the reaction proceeds
The sequence of zones in the rotary kiln are as____________________?
(A) dry zone burning zone decomposition zone cooling zone
(B) cooling zone burning zone decomposition zone dry zone
(C) burning zone cooling zone decomposition zone
(D) dry zone decomposition zone burning zone cooling zone
Which one of the following raw material is not present in the cement ?
(A) lime stone
(B) gypsum
(C) KNO3
(D) iron oxide
Energy of activation for backward reaction is less than forward reaction for ___________ reactio?
(A) Endothermic
(B) Exothermic
(C) Moderate
(D) Fast
When the reaction completes in more than one steps rate of reaction will be determined by________________?
(A) Fast step
(B) Slowest step
(C) All steps
(D) Molecularity of the reaction
A substance which increases the reactivity of enzyme is called_________________?
(A) Promoters
(B) Inhibitors
(C) Stimulators
(D) Non-activators
An enzyme has its specificity due to________________?
(A) Substrate
(B) Structure
(C) Temperature
(D) Pressure
When catalysts and reactants are in more than one phase it is________________?
(A) Homogeneous catalysis
(B) Heterogeneous catalysis
(C) Catalysis
(D) Ea