Question

The molecule having highest bond energy is

Solution

Correct option is

C—C

Single bond energies tend to increase as we proceed to right in a given period but still C – C bond is the greatest because electron-electron repulsion is very high in N–N, O–O and F–F due to small size of atoms weakening the respective bonds.

SIMILAR QUESTIONS

Q1

A diatomic molecule has a dipole moment of 1.2D. If the bond distance is 1.0Å, what function of an electronic charge, e, exists on each atom?

Q2

The dipole moment of LiH is  and the interatomic distance between Li and H in this molecule is 1.596Å. What is the per cent ionic character in LiH?

Q3

Which of the following gains electrons more easily?

Q4

The IE1, IE2, IE3, IE4 and IE5 of an element are 7.1, 14.3, 34.5, 46.8, 162.2 eV respectively. The element is likely to be  

Q5

The elector-negativities of N, C, Si and P are such that

Q6

Which of the following will have maximum electron affinity?

Q7

EN of the element (A) is E1 and IP is E2. Hence EA will be

Q8

Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?

Q9

H2O is dipole, whereas BeF2 is not. It is because

Q10

Which set is expected to show the smallest difference in first ionisationenergy?