Naphthalene, the chemical compound traditionally used to make mothballs, has an unusual property of transitioning directly from which state to which state at room temperature?

Explanation

Naphthalene undergoes sublimation at room temperature, meaning it transitions directly from a solid to a gas without passing through a noticeable liquid phase, which is why mothballs made from naphthalene gradually shrink and eventually disappear over time as they release vapor. This vapor has a strong, distinctive odor that is effective at repelling moths and other fabric-damaging insects. Because of health and environmental concerns associated with naphthalene, some modern mothball products have switched to alternative active ingredients. Explore more Everyday Science MCQs on mcqstutor to keep practicing.