Chemical Kinetics and Nuclear ChemistryHard

Question

Select the correct statements out of I, II and III for zero order reaction
I : Quantity of the product formed is directly proportional to time
II : Larger the initial concentration of the reactant, greater the half-life period
III : If 50% reaction takes place in 100 minutes, 75% reaction take place in 150 minutes.

Options

A.I only
B.I and II only
C.II and III only
D.I, II and III

Solution

We know for zeroth order Rxn
For (I)         x = kt
For (II)        t1/2 ∞ [A0] [Initial concentration]
For (III)       A0 -= k × 100     .....(i)
A0 - = k × t      .....(ii)

t = = 150 minutes.

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