Question

Define the following?
1 oxygen

2 Nitrogen ​

Answer 1

1.a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

2.the chemical element of atomic number 7, a colourless, odourless unreactive gas that forms about 78 per cent of the earth's atmosphere. Liquid nitrogen (made by distilling liquid air) boils at 77.4 kelvins (−195.8°C) and is used as a coolant.

Answer 2

$\large \rm \blue { OXYGEN }$

• Oxygen is the most important gas in environment plants and animals need oxygen to live . Plant take carbon dioxide in and give oxygen out at night plant take oxygen in and give carbon dioxide .H2O that is water is the most elegant example of presence of oxygen. In water , hydrogen (2H2) combines with oxygen (O2) to form water.

$\large \rm \blue { NITROGEN }$

• A nonmetallic element that makes up about 78 percent of the atmosphere by volume, occurring as a colorless, odorless gas. It is a component of all proteins, making it essential for life, and it is also found in various minerals. Nitrogen is used to make ammonia, nitric acid, TNT, and fertilizers.

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