Question

2. a) Write an activity for the separation of a mixture of common salt and water by distillation with a well-labelled diagram.

b) What is a Nitrogen Cycle? Explain it with the help of a well-labelled diagram. Also mention the uses of Nitrogen.​
{WORD LIMIT 200-250}

Answer 1

Answer:

For Question { A }⬇

Separating the solvent from a solution – simple distillation

(i) Salt solution is heated.

(ii) Water evaporates and its vapours rise. The water vapour passes into the condenser, where it cools and condenses. Liquid water drips into a beaker.

(iii) All the water has evaporated from the salt solution, leaving the salt behind.

Explanation:

For question { B }⬇

Nitrogen Cycle is a biogeochemical process through which nitrogen is converted into many forms, consecutively passing from the atmosphere to the soil to organism and back into the atmosphere. It involves several processes such as nitrogen fixation, nitrification, denitrification, decay and putrefaction.