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Chemistry CBSE Live product
Class 10
Chemical reaction and equations
Annual Revision II - Chemical reactions and equations
4.
Change in temperature
Question:
1
m.
Pick the correct choice for the following assertion-reason pair:
Assertion (A):
Sublimation of solid carbon dioxide (dry ice) is exothermic.
Reason (R):
Sublimation requires absorption of heat from surroundings.
Both A and R are true, and R is not the correct explanation of A
Both A and R are true, and R is the correct explanation of A
A is true but R is false
A is false but R is true
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