Question

II. Mention how the following gases are useful to us: 1. Nitrogen 2.Oxygen

Answer 1

Answer:

please make me as brainliest.

Explanation:

Nitrogen-Nitrogen is important to the chemical industry. It is used to make fertilisers, nitric acid, nylon, dyes and explosives. To make these products, nitrogen must first be reacted with hydrogen to produce ammonia. This is done by the Haber process.

Oxygen-The largest user of oxygen is the steel industry. It is also used in the manufacture of other metals, notably copper and lead. It is more economic to use pure oxygen, or oxygen-enriched air, rather than air as this increases the reaction rates and means that smaller chemical plants can be used.  Further it makes it easier to ensure that no gases such as sulfur dioxide are lost and pollute the atmosphere.

The gas is also used in the manufacture of many chemicals including nitric acid, hydrogen peroxide, epoxyethane and chloroethene (vinyl chloride), the precursor to PVC.

Among its other uses is the burning off of carbon deposited on the fluid catalyst used in the catalytic cracking of gas oil

A growing use for oxygen is in treating sewage and effluent from industry.  Polluted rivers and lakes can be cleaned by dissolving oxygen gas directly into the water to encourage a better ecological balance. It is used, for example, in fish farming to provide this balance.

It is also used, with sodium hydroxide, to bleach paper pulp as an alternative to chlorine dioxide or sodium chlorate(I) (sodium hypochlorite).

Answer 2

Nitrogen is important in some industries and oxygen is very important for human as it it helps us to breathe that is answering thank you