Answer : i. Crystalline solids: a. A crystalline solid usually consists of a large number of small crystals, each of them having a definite characteristic geometrical shape. These tiny crystals are called unit cells. b. A unit cell is a […]
Tag: class 12th std chemistry
Give the classification of solids.
Answer: Solids are classified as crystalline and amorphous on the basis of the presence or absence of orderly arrangement of their constituent particles (atoms, ions or molecules). i. Crystalline solids: A crystalline solid is a homogeneous solid in which the […]
Give characteristics of solid state.
The solid state is characterized by the following properties: i. Solids have definite mass, volume, shape and density. Usually, the density of solid state is greater than the density of liquid and gaseous state. Water and mercury are exceptions. The […]
Define a solid. Under what conditions does a substance exist in solid state?
Answer: Matter can exist in three states namely, solid, liquid and gas. Under a given set of conditions of temperature and pressure, the most stable state of a substance depends upon the […]