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AIIMS 2002

Exam: AIIMS
Year: 2002
Subject: Chemistry
Chapter: Chemical Bonding and Molecular Structure

AIIMS 2002 · Chemistry · Chemical Bonding and Molecular Structure

Which of the following molecule has highest bond energy?

Which of the following molecule has highest bond energy?

Options

A $\mathrm{F}-\mathrm{F}$
B $\mathrm{N}-\mathrm{N}$
C $\mathrm{C}-\mathrm{C}$
D $\mathrm{O}-\mathrm{O}$

Correct answer

C. $\mathrm{C}-\mathrm{C}$

Step-by-step solution

The bond energies of

\mathrm{F}-\mathrm{F}, \mathrm{C}-\mathrm{C}, \mathrm{N}-\mathrm{N}

and

\mathrm{O}-\mathrm{O}

bonds are

33,80,39

and

34.2 \mathrm{~kJ} / \mathrm{mol}

respectively. Therefore molecule of

\mathrm{C}-\mathrm{C}

has the highest bond energy.

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