Gneet Chemistry. We covered all the Gneet Chemistry in this post for free so that you can practice well for the exam.
Install our MCQTUBE Android app from the Google Play Store and prepare for any competitive government exams for free.
These types of competitive MCQs appear in the exams like MHT-CET, NEET, JEE (Mains), and other Competitive Examinations, etc. We created all the competitive exam MCQs into several small posts on our website for your convenience.
You will get their respective links in the related posts section provided below.
Related Posts:
- Dinesh Chemistry Class 9
- Class 10 Chemistry Objective Questions in Hindi
- Chemistry Weightage Class 12 HSC
Gneet Chemistry Objective for Students
According to the Arrhenius equation, a straight line is obtained by plotting the logarithm of the rate constant of a chemical reaction (log k) against
(A) T
(B) log T
(C) 1/T
(D) log 1/T
Option c – 1/T
The value of activation energy for a chemical reaction is primarily dependent on
(A) Temperature
(B) the Nature of reacting species
(C) Collision frequency
(D) Concentration of reactions
Option b – the Nature of reacting species
How do enzymes increase the rate of reaction?
(A) By lowering the activation energy.
(B) By increasing activation energy.
(C) By changing the equilibrium constant.
(D) By forming the enzyme-substrate complex.
Option a – By lowering the activation energy
The activation energy of a chemical reaction can be determined by
(A) Evaluating rate constants at two different temperatures.
(B) Evaluating velocities of reaction at two different temperatures
(C) Evaluating rate constant at standard temperature.
(D) Changing the concentration of reactants.
Option a – Evaluating rate constants at two different temperatures
Collision theory is most satisfactory for
(A) First-order reaction
(B) Second-order reaction
(C) Zero-order reaction
(D) Bio-molecular reaction
Option d – Bio-molecular reaction
The activation energy of a reaction is zero. The rate constant of a reaction
(A) Increases with increasing temperature
(B) Decreases with decreasing temperature
(C) Decreases with increasing temperature
(D) Independent of temperature
Option a – Increases with increasing temperature
Activation energy is
(A) The amount of energy to be added to the actual energy of a molecule.
(B) The average kinetic energy of the molecule
(C) The energy which a molecule should have in order to enter into an effective collision.
(D) The amount of energy the molecule must contain so that it reacts.
The addition of a catalyst during a chemical reaction alters which of the following quantities?
(A) Entropy
(B) Activation of energy
(C) Enthalpy
(D) Internal energy
Option b – Activation of energy
We covered all the gneet chemistry above in this post for free so that you can practice well for the exam.
Check out the latest MCQ content by visiting our mcqtube website homepage.
Also, check out:
