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Answers
Answer 1 :—
List of Uses of Nonmetals
Amorphous form of carbon, charcoal is used for ultrafiltration in modern water filters. Also, it is used in refrigerators to control bad odour. Below are the nonmetals uses in different fields:
Uses of nonmetals in our daily life
- Nonmetals used in fertilizers
- Nonmetals used in crackers.
1. Uses of nonmetals in our daily life:
•Oxygen which is 21% by volume helps in the respiration process. It is also used for manufacturing of steel and provides high temperature in metal fabrication process. Oxygen cylinders are used in hospital.
•Chlorine is useful in removing stains and colour patches as a bleaching agent. Various graded plastics and insecticides are made with chlorine. It helps in purification of water. How? Adding chlorine to drinking water kills the bacterias.
•Helium is used as inert gas for scientific experiments. It is also used in weather balloons.
•Iodine helps from throat infections and is used as antiseptic on wounds and cuts.
2. Nonmetals used in fertilizers:
• Fertilizers contain nitrogen. It helps in plant growth. It enhances the rate of plant growth. Non Metal phosphorus is also used for better plant growth. These two nonmetals play a major role in plant growth.
•3. Nonmetals used in crackers:
Sulphur and phosphorus are used in fireworks.
:Define:
Answer 2 :—
• Ore: The mineral from which element can be extracted easily and profitably is called an ore.
• Gangue: The impurities present in the ore such as sand, rocks etc are non as gangue.
•Nobel gas :In chemistry, noble metals are metallic elements that show outstanding resistance to chemical attack even at high temperatures. They are well known for their catalytic properties and associated capacity to facilitate or control the rates of chemical reactions.
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Answer:
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