Question

Could you please answer this question for me please?Which of the following has covalent bonds that are the most polar?a) H2Ob) NH3c) CH4d) H2S

Answer 1

The most polar covalent bond is
`H_2O`

Explanation;

•Polar covalent are generally formed when the sharing of electrons takes place between two dissimilar electronegative elements!

•The most polar is based on more electronegative atom it is attached to and oxygen is more electronegative.

Answer 2

To answer this question, we need to know that: The greater the electronegativity, the greater the polarization of the bond.

Is there a way for us to know the order of electronegativity of the most electronegative elements, which are:

F > O > N > Cl > Br > I > S > C > P > H

We can see that all molecules are bound to hydrogen. Therefore, we need to see which is the most electronegative element of the alternatives:

O>N>S>C

So the answer is:

Alternative "A" H2O