The reaction in which reactants are present in different physical states are called
Molecular reaction.
Homogeneous reaction
Ionic reaction
Heterogeneous reaction
________________ is used to explain the dependence of reaction rate on concentration.
Law of conversation of mass.
Law of constant composition.
Law of mass action
Law of multiple proportions.
For most of the homogeneous reaction the value of temperature coefficient lies between
1 and 2
2 and 3.
3 and 4.
4 and 5.
The rate of a reaction may be ___________________ by decreasing the concentration of one or more reactants.
Decreased
Increased.
May be increased or decreased
Constant
___________ reaction is termed as fast reaction.
Homogeneous reaction.
Heterogeneous reaction.
The rate of a chemical reaction
Increases as the reaction proceeds
Decreases as the reaction proceeds.
May increase or decrease during the reaction.
Remains constant as the reaction proceeds.
The branch of chemistry which deals with the study of reaction rates and their mechanism is called
Chemical reaction
Chemical kinetics.
Chemisorption.
Chemical reactants.
In most of the homogeneous reactions,the rate becomes ______________ to trebled for each 10 degree rise in temperature.
Half
Triple
Double
Same.
The first quantitative relationship between the rate of reaction and concentration of reactants was given by
Goldstein
Guldberg and waage.
Lavoisier.
Chadwick.
The rate of a reaction can be obtained by dividing the rate of disappearance of any of the __________ or the rate of appearance of any of the _____________ by its stoichiometric coefficient
Products,Reactants.
Reactants,Products.
Molecules,Reactants
Molecules,Products.
