Assertion: Nitrogen and hydrogen combine together to form ammonia.
Reason: It is an exothermic reaction.
A
Both assertion and reason are true and the reason is the correct explanation of assertion.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Both assertion and reason are true but the reason is not the correct explanation of assertion.
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
The assertion is true but the reason is false.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Both assertion and reason are false.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is B Both assertion and reason are true but the reason is not the correct explanation of assertion.
In the reaction, bonds between two atoms of nitrogen molecule and atoms of hydrogen molecules are broken. Simultaneously, new bonds between nitrogen and hydrogen atoms are formed resulting in the formation of ammonia.
During this process, heat energy is liberated to the surroundings. Therefore, this reaction is exothermic.
Hence, the reason given is not an explanation but could be consider as an observation.