The thermal decomposition of a compound is of first order. If a sample of the compound decomposes 50% in 120 minutes, in what time will it undergo 90% decomposition ____.
Nearly 240 minutes
Nearly 480 minutes
Nearly 450 minutes
Nearly 400 minutes
The order of the reaction occurring by following mechanism should be
(i) (fast)
(ii) (slow)
(iii) (Fast) ____.
2
None of the above
For the reaction taking place on water, the order of reaction is ____.
1
2
3
0
The rate for a first order reaction is and the initial concentration of the reactants is 1M, is equal to ____.
100 min
75% of a first order reaction is completed in 30 minutes. What is the time required for 93.75% of the reaction (in minutes)?
45
120
90
60
The given reaction is an example of ____.
First order reaction
Second order reaction
Third order reaction
None of the above
Order of a reaction is decided by ____.
Pressure
Temperature
Molecularity
Relative concentration of reactants
For the reaction rate is given by R then the order of the reaction is ____.
3
6
5
7
If the order of the reaction is zero, it means that the rate of ____.
Reaction is independent of temperature
Formation of activated complex is zero
Reaction is independent of the concentration of reacting species
Decomposition of activated complex is zero
For a chemical reaction ____can never be a fraction.
Order
Half-life
Molecularity
Rate constant