The polarity of a covalent bond between two atoms depends upon

Arrange the following bonds in order of increasing ionic character: $C-O, C-N$ and $C-C$. Give reasons.

Bond polarity of a diatomic molecule is because of

Which of the following is most electronegative?

Aqueous solutions of two compounds $M_1-OH$ and $M_2-OH$ are prepared in two different beakers. If the electronegativity of $M_1 = 3.4$,$M_2 = 1.2$,$O = 3.5$,and $H = 2.1$,then the nature of the two solutions will be respectively:

Which of the following elements has the highest electronegativity?