Question

Which molecule contains a total of three covalent bonds? (options given below)

Answer 1

a)C2H4 B)H2 C)H2O D)N2

Answer 2

And why?

Answer 3

C2H4 contains 6 covalent bonds
H2 contains 1 covalent bonds
H2O contains 2 covalent bonds
N2 contains 3 covalent bonds
It looks like this:

Answer 4

the electronic configuration of N is 2,5 ; it needs 3 more electrons to attain octect configruation (eight electron configuration). So it undergoes 3 bonds which is the sharing of 3 electrons.

Answer 5

N2 because there are triple bond b/w N atoms

Answer 6

2,5 + 2,5 = 5. to become stable it must have 8 electrons in its outer shell so it will share 3 electrons = 3 covalent bonds