Radiations are absorbed in_______________?

A. Spectrophotometer method
B. Dilatometric method
C. Optical relation method
D. Refractometric method

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

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 specific rate constant of a first order reaction depends on the________________?

A. Time
B. Concentration of the reactant
C. Temperature
D. Concentration of the product

The value of activation energy is primarily determined by_______________?

A. Temperature
B. Effective collision
C. Concentration of reactants
D. Chemical nature of reactants and products

Spontaneous reactions are_______________?

A. Moderate
B. Slow
C. Fast
D. Not natural

Unit of rate of reaction is_________________?

A. Moles dm-3 sec-1
B. Moles dm-3
C. Moles sec-1
D. Mol-1 dm3 sec-1

Rate of disappearance of reactant is equal to_________________?

A. Rate of reaction
B. Rate of formation of product
C. Energy released during reaction
D. A and b

Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

A. Kci
B. Kno3
C. K2so4
D. Kmno4

Argillaceous material does not include________________?

A. Vlay
B. Marine shells
C. Slate
D. Blast furnace slag