A small quantity of solid ammonium chloride (NH4Cl) was heated gently in a test tube, the solid gradually disappears to produce two gases. Later, a white cloudy deposit was observed on the cooler part of the test tube. The ammonium chloride is said to have undergone?
- distillation
-
sublimation
- precipitation
- evaporation
- decomposition
The correct answer is: B
Explanation
Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase