JEE PYQ: P Block Elements Question 40
Question 40 - 2020 (08 Jan Shift 2)
Arrange the following bonds according to their average bond energies in descending order: C$-$Cl, C$-$Br, C$-$F, C$-$I
(1) C$-$F > C$-$Cl > C$-$Br > C$-$I
(2) C$-$Br > C$-$I > C$-$Cl > C$-$F
(3) C$-$I > C$-$Br > C$-$Cl > C$-$F
(4) C$-$Cl > C$-$Br > C$-$I > C$-$F
Show Answer
Answer: (1)
Solution
Generally, bond energy $\propto \frac{1}{\text{Bond length}}$. So bond energy order is C$-$F > C$-$Cl > C$-$Br > C$-$I.
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