Which of the following is an important application of hydrogen bonding?A.Holding DNA togetherB.Mixing of oilsC.Expanding H2 gasD.Crystallizing NaCl
Question
Which of the following is an important application of hydrogen bonding?A.Holding DNA togetherB.Mixing of oilsC.Expanding H2 gasD.Crystallizing NaCl
Solution
The correct answer is A. Holding DNA together.
Here's why:
A. Holding DNA together - Hydrogen bonds are crucial in maintaining the structure of DNA. The two strands of a DNA molecule are held together by hydrogen bonds between pairs of nitrogenous bases.
B. Mixing of oils - Hydrogen bonding does not play a significant role in the mixing of oils. Oils are non-polar substances and do not form hydrogen bonds.
C. Expanding H2 gas - Hydrogen bonding does not contribute to the expansion of H2 gas. Hydrogen gas consists of diatomic (H2) molecules that are held together by covalent bonds, not hydrogen bonds.
D. Crystallizing NaCl - The crystallization of NaCl (table salt) involves ionic bonds, not hydrogen bonds. The positive sodium ions (Na+) and negative chloride ions (Cl-) attract each other to form a crystal lattice.
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