Question

Maximum number of hydrogen bonding in ${{H}_{2}}O$ is:

• A. $1$
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (D)

4

Answer 2

In every ${{H}_{2}}O$ molecule, each H-atom is involved in hydrogen bond with $O-$ atom of other molecule, while 0-atom is involved in two hydrogen bonds with two H-atoms of other molecules. Thus, every ${{H}_{2}}O$ molecule involves four hydrogen- bonds.