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Molecular Basis of Inheritance Class 12 Important Questions. We covered all the Molecular Basis of Inheritance Class 12 Important Questions in this post for free so that you can practice well for the exam.
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Molecular Basis of Inheritance Class 12 Important Objective Questions for Students
Which statement about the order of a reaction is incorrect?
a) The order can only be determined through experiments
b) The stoichiometric coefficients of reactants do not affect the order
c) The order equals the sum of powers of concentration terms in the rate law
d) The order of a reaction is always a whole number
Option d – The order of a reaction is always a whole number
The order of a reaction is determined by
a) Temperature
b) Pressure
c) Reaction mechanism
d) Molecularity
Option c – Reaction mechanism
For the reaction A + B → Products, if the rate depends on [A] but not on [B], then
a) The order is 2 and molecularity is 1
b) Molecularity is 2 but order is 1
c) Order is 2 and molecularity is 2
d) Order is 2 but molecularity is 0
Option b – Molecularity is 2 but order is 1
The number of reactant molecules involved in a reaction indicates
a) The order of reaction
b) The rate of reaction
c) The molecularity of the reaction
d) The mechanism of the reaction
Option c – The molecularity of the reaction
Which of the following statements is incorrect?
a) Molecularity is always a whole number
b) Order and molecularity need not be equal
c) Order of a reaction may be zero
d) The order of reaction depends on the reaction mechanism
Option d – The order of reaction depends on the reaction mechanism
The order of a reaction refers to
a) The number of molecules reacting in the reaction
b) The number of molecules whose concentration changes
c) The number of reactant molecules whose concentration affects the reaction rate
d) Increase in the number of product molecules
Option c – The number of reactant molecules whose concentration affects the reaction rate
Molecularity of an elementary reaction
a) May be zero
b) Is always an integer
c) May be semi-integer
d) Can be fractional, zero, or integral
Option b – Is always an integer
We covered all the Molecular basis of inheritance Class 12 important Questions above in this post for free so that you can practice well for the exam.
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