Question

Which of these molecular properties makes water (H20) a polar solvent?

A) The hydrogen (H) atoms hold the electrons in the covalent bonds more closely than the oxygen (O) atom, and the oxygen atom develops a partial positive charge.

B) The oxygen (O) atom holds the electrons in the covalent bonds more closely than the
hydrogen (H) atoms, and the hydrogen atoms develop a partial positive charge.

C) The oxygen (O) atom holds the electrons in the covalent bonds more closely than the
hydrogen (H) atoms and develops a partial negative charge.

D) The hydrogen (H) atoms hold the electrons in the covalent bonds more closely than the oxygen (O) atom and develop a partial negative charge.

Answer 1

Answer:

The oxygen atom holds the electrons in a covalent bond more closely than the hydrogen atoms and develops a partial negative charge.

Explanation:

Water molecule is composed two hydrogen atoms and one oxygen atom.Both the hydrogen atom interact with the single oxygen by the formation of covalent bond.

  Although the covalent bond is formed but the bonding electrons are not shared equally by both the atom.As oxygen is more electronegative than that of hydrogen atom,oxygen attract the bonding electron pair towards itself.

  As a result the hydrogen atom get partial positive charge and oxygen atom gains partial negative charge.