5. When a phosphate group is found in water: a) The partially-negative oxygen at

Question

5. When a phosphate group is found in water: a) The partially-negative oxygen atoms of the water molecules surround the oxygen atoms of the phosphate group. b) The partially-positive hydrogen atoms of the water molecules surround the oxygen atoms of the phosphate group. c) The partially-positive oxygen atoms of the water molecules surround the oxygen atoms of the phosphate group. d) Hydrophobic forces push the phosphate groups together to minimize their disruption on hydrogen bonding between water molecules. e) There is more than one correct answer above.

Explanation / Answer

ANS:

b) The partially-positive hydrogen atoms of the water molecules surround the oxygen atoms of the phosphate group.

Explanation:

In the water molecule two polar covalent bonds are present. Among this oxygen molecule had a partial negative charge and both hydrogen atoms partial positive charge. The positive and negative ends of the bond cause charge separation or a dipole. So water molecule had 2 polar covalent bonds and 2 bond dipoles.

In phosphate group two oxygen molecules had partial negative charges, so the partially-positive hydrogen atoms of the water molecules surround the oxygen atoms of the phosphate group.

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