Polarity of Molecules

Which of the following terms refer to the ability of an atom in a molecule

to attract shared electrons?

• Electron affinity

• Electronegativity

• Ionization energy

• Electromotive force

Which is TRUE about polar bonds?

• They are present in metals

• They are responsible for the formation of ionic compounds.

• They always result in the formation of polar molecular compounds

• They may result in nonpolar covalent compounds depending on

  molecular geometry.

What type of chemical bond holds the atoms of water molecule together?

• Ionic bond

• Hydrogen bond

• Polar covalent bond

• Nonpolar covalent bond

Which of the following molecule is nonpolar?

• NaCl

• HCl

• CO2

• NH3

Which of the two pairs has the lowest electronegativity difference value?

• C-O

• H-N

• S-F

• Na-Cl

What is the type of chemical bond present in a hypothetical molecule

which has an electronegativity difference of 0.5?

• Ionic

• Hydrogen

• Polar covalent

• Nonpolar covalent

What is the molecular shape of BeF3?

• Linear

• Trigonal

• Tetrahedral

• Trigonal bipyramidal

A molecule can have a polar bond and still be nonpolar overall.

The statement is?

• True

• False

• Maybe

A polar covalent bond would form in which of the following pairs of atoms?

• Cl-Cl

• Mg-O

• N-H

• C-S

A molecule shape is a three-dimensional arrangement of atoms or bonding

groups around a central atom. The molecular shape is governed

by the valence shell electron repulsion (VSEPR) theory.

• The first and second statements are true

• The first and second statements are false.

• The first statement is true while the second statement is false

• The first statement is false while the second statement is true.