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practice testMultiple Choice

Practice Test

Question 1 • Chemistry

Which statement about hydrogen bonds is true?

Answer
A
They are the weakest of the intermolecular forces.
B
They help water striders walk on water by creating surface tension.
C
They are much stronger than intramolecular forces.
D
They are the only force that allows a gecko to climb up glass.

Explanation

Hydrogen bonds form attractions between water molecules, creating strong cohesion at the surface. This surface tension helps water striders stay on top of the water. Hydrogen bonds are not the only force involved in a gecko’s grip, are stronger than some but not all intermolecular forces, and are much weaker than the covalent bonds within molecules.

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