Diamond: a. Diamond is an allotrope of carbon. It is used in jewellery and is the most precious crystal. b. Covalent bonds between sp3 hybridized carbon atoms continue in all directions to form a giant network. c. Diamond is very […]
Tag: chemistry
Name the different types of crystalline solids on the basis of different forces present in them. Explain the following terms.
Answer: Depending upon the nature of intermolecular forces present in the constituent particles, crystalline solids are classified into the following four classes: i. Molecular solids ii. Ionic solids iii. Metallic solids iv. Covalent solids Explanation: Molecular solids: a. Molecular solids […]
Explain crystalline solids and amorphous solids.
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 […]
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 […]
Sanskrit – March 2015- II Semester- Science Stream – Gujarat – HSC Past Papers
Sanskrit – March 2015 – II Semester- Science Stream – Gujarat – HSC Past Papers