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Science CBSE Mentoring Hindi
Class 10 Mentoring
Chemical reactions and equations
Introduction to chemical reactions and balancing equations
4.
Chemical reactions and equations
Question:
1
m.
Pick the correct choice for the following assertion-reason pair:
Assertion (A):
The reaction between zinc and hydrochloric acid is exothermic.
Reason (R):
Energy is absorbed due to the formation of new bonds in zinc chloride.
Both A and R are true, and R is the correct explanation of the A
A is false, but R is true
Both A and R are true, and R is not the correct explanation of the A
A is true, but R is false
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