MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Select the correct option from the following option. |
| A. | Catalyst is used to increase the rate of reaction by altering chemically during the course of reaction |
| B. | Catalyst is used to decrease the rate of reaction by altering chemically during the course of reaction |
| C. | Catalyst is used to increase the rate of reaction and remains unaltered chemically during the course of reaction |
| D. | Catalyst is used to decrease the rate of reaction and remains altered chemically during the course of reaction |
| Answer» D. Catalyst is used to decrease the rate of reaction and remains altered chemically during the course of reaction | |
| 2. |
The reactions register an increase in rates in the presence of radiations of specific wavelengths. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The reaction rate is greatly influenced by ___________ |
| A. | Nature of bond in the reactant molecules |
| B. | Strength of bond in the reactant molecules |
| C. | Both nature and strength of the reactant molecules |
| D. | It does not depend on either nature or strength of the reactant molecules |
| Answer» D. It does not depend on either nature or strength of the reactant molecules | |
| 4. |
The effective collisions between the reactant molecules at higher temperatures ___________ |
| A. | Increase |
| B. | Decrease |
| C. | Remains same |
| D. | First increase then decrease |
| Answer» B. Decrease | |
| 5. |
Molecularity of a reaction is equal to the total number of _____________ |
| A. | Products formed in the elementary step |
| B. | Reactants taking part in elementary step |
| C. | Reactants and products in the elementary step |
| D. | Reactants and products in the final step |
| Answer» C. Reactants and products in the elementary step | |