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 one of the following statements for the order of reaction is incorrect?
(A) Order can be determined only experimentally.
(B) Order is not influenced by the stoichiometric coefficient of the reactants.
(C) The order of a reaction is the sum of power to the concentration terms of reactants to express the rate of reaction.
(D) The order of reaction is always a whole number.
Option d – The order of reaction is always a whole number
Order of a reaction determined by
(A) Temperature
(B) Pressure
(C) Mechanism of reaction
(D) Molecularity
Option c – Mechanism of reaction
For the reaction A + B Products. It is found that the rate of the reaction is proportional to the concentration of A but it is independent of the concentration of B then.
(A) The order of the reaction is 2 and the molecularity is 1.
(B) Molecularity of the reaction is 2 but the order is 1
(C) Order is 2 and the molecularity is 2.
(D) The order of the reaction is 2 but molecularity is 0
Option b – Molecularity of the reaction is 2 but the order is 1
The number of molecules of the reactants taking part in a chemical reaction tells about
(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 one of the following statements is wrong?
(A) The molecularity of a reaction is always a whole number.
(B) Order and molecularity of a reaction need not be the same
(C) Order of a reaction may be zero.
(D) The order of reaction depends upon the mechanism of the reaction.
Option d – The order of reaction depends upon the mechanism of the reaction
The order of the reaction is
(A) the number of molecules reacting in a reaction.
(B) The number of molecules whose concentration changes during a reaction.
(C) The number of molecules of reactants whose concentration determines the rate
(D) Increase in the number of molecules of products.
(D) Increase in the number of molecules of products.
Option c – The number of molecules of reactants whose concentration determines the rate
The molecularity of an elementary reaction
(A) May be zero
(B) Is always integral
(C) May be semi-integral
(D) May be integral, fractional, or zero
Option b – Is always integral
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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