Important Applications of Hydrogen Bonding

Which of the following is an important application of hydrogen bonding?

A. Holding DNA together

B. Crystallizing NaCl

C. Mixing of oils

D. Expanding H₂ gas

Final answer:

One important application of hydrogen bonding is holding DNA together.

One important application of hydrogen bonding is holding DNA together. Hydrogen bonding between the complementary base pairs in DNA plays a crucial role in maintaining the structure and stability of the double helix.

Crystallizing NaCl is not an important application of hydrogen bonding as it is primarily held together by ionic bonds rather than hydrogen bonding. Mixing of oils is also not an important application of hydrogen bonding since oil molecules are nonpolar and do not engage in hydrogen bonding.

Finally, expanding H₂ gas does not involve hydrogen bonding, but rather the expansion is due to the increase in kinetic energy of the gas particles.