Shyam Walked 6 metres facing towards East, then took a right turn and walked a distance of 9 metres.He then took a left turn and walked a distance of a metres. How far is he from the starting point?
Ionic character depends on the electronegativity difference between the bonding elements. The greatest the elctronegativity diffference the greatest the ionic character.
Here in the given options, H-F has has the greatestionic character. The electronegativity of Hydrogen is 2.1 and that of Fluorine is 4. Now the electronegativity difference is 4 - 2.1 = 1.9.