Question

When a substance changes from gaseous state to solid state directly, it is known as _________________.

Answer 1

1. Deposition is the reverse of the process of sublimation.
2. Here, a gas solidifies directly without going through the liquid stage when it undergoes a reduction in temperature.
3. The best example of deposition is the formation of frost in extremely cold conditions.

Thus, when a substance changes from gaseous state to solid state directly, it is known as deposition.