Different order reactions

The concentrations of the reactant A in the reaction A to B at different times are given below: The rate constant of the reaction according to the correct order of reaction is :

Half life of a first order reaction and a zero order reaction are same. Then the ratio of the initial rate of the first order reaction to that of zero order reaction is

Half-lives of a first order and a zero order reaction are same. Then the ratio of the initial rates of the first order reaction to that of zero order reaction is

Correct order for a first order reaction is

Define order of reaction, what are the units for the rate constant of first order reaction?

Two different first order reactions have rate consants k_(1) and k_(2) "at" T_(1)(k_(1)gtk_(2)) . If temperature is increased form T_(1) "to"T_(2) ,then new consant become k_(3) and k_(4) respeectively. Which among the following relartions is correct

For a zero order reaction and a Ist order reaction half life are in ratio of 4:1 . Calculate ratio of time taken to complete 87.5% reaction for zero order : first order reaction respectively.