Assertion (A): A chemical reaction becomes faster at higher temperatures.  

Reason (R):   At higher temperatures, molecular  motion becomes more rapid.  

 

Directions: In the following questions, a statement  of assertion (A) is followed by a statement of  reason (R). Mark the correct choice as:   

(a) Both assertion (A) and reason (R) are true and  reason (R) is the correct explanation of assertion  (A).  

(b) Both assertion (A) and reason (R) are true but  reason (R) is not the correct explanation of  assertion (A).  

(c) Assertion (A) is true but reason (R) is false.  

(d) Assertion (A) is false but reason (R) is true.

 

Ans. 

A chemical reaction becomes faster at higher temperatures because at high temperature, the movement  of particles is greater.  

 

Thus,

  • Assertion is true
  • Reasoning is true
  • And Reasoning is the correct explanation of Assertion

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So, the correct answer is (a)  

  1. Class 10
  2. Chapter 1 Class 10 - Chemical Reactions and Equations (Term 1)

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Class 10
Chapter 1 Class 10 - Chemical Reactions and Equations (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo