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Assertion: Nitrogen and hydrogen combine...

Assertion: Nitrogen and hydrogen combine together to form ammonia
Reason: It is an endothermic reaction.

A

If both assertion and reason are time and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
C
In the reaction, bonds between two atoms of nitrogen molecule and atoms of hydrogen molecules are broken and new bonds are formed. Heat energy is liberated to the surroundings. Hence, this reaction is exothermic.
`N_(2(g))to2NH_(3(g))+`Heat
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