Question

The table given below lists the bond dissociation energy `(E_("diss"))` for single covalent bonds formed between C and atoms A, B, D, E.
`{:("Bond",,,E_("diss")("kcal mol"^(-1))),(C-A,,," "240),(C-B,,," "382),(C-D,,," "276),(C-E,,," "486):}`
Which of the atoms has smallest size ?
A. A
B. B
C. C
D. E

Answer 1

Correct Answer - D
`C-E` bond has highest bond energy, it means that the covalent C-E will be strong. Smaller is the size of atom, stronger is the covalent bond.