Question

2.Write two uses of each of the following: a)metals b)non-metals c)metalloids d)inert gases

Answer 1

Explanation:

Metalloids are usually too brittle to have any structural uses. They and their compounds are used in alloys, biological agents, catalysts, flame retardants, glasses, optical storage and optoelectronics, pyrotechnics, semiconductors, and electronics.

Uses for Metals and Nonmetals

Shiny metals such as copper, silver, and gold are often used for decorative arts, jewelry, and coins.

Strong metals such as iron and metal alloys such as stainless steel are used to build structures, ships, and vehicles including cars, trains, and trucks.

Answer 2

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• Gold, Platinum and silver are used as jewelleries and ornaments.
• Iron and steel are used for construction purpose.
• Aluminium, steel are used as utensils.
• Mercury is used in thermometer and helps to check the temperature.
• Aluminium are used as insulation wires.

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• 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. ...
• Nonmetals used in fertilizers: Fertilizers contain nitrogen. It helps in plant growth. ...
• Nonmetals used in crackers

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• tellurium. Rare semimetal that is used especially in the manufacture of detonators, electric resistors, rubber, ceramics and glass.
• antimony. Semimetal that is used in several alloys (mostly with lead) and especially in making metal for printing type and semiconductors

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• In metallurgical processes, argon is widely used in order to provide the necessary inert atmosphere. This inert atmosphere plays an important role in welding titanium, aluminium, stainless steel, and magnesium. It is also used in the production of titanium.
• A limited amount of argon is used in germanium and silicon crystals which are used in electric light bulbs, transistors, etc.
• The boiling point of helium is the least when compared to any other liquid. It is used to obtain the lowest temperatures required in lasers.
• Helium is used in nuclear reactors as a cooling gas and used as a flow-gas in liquid-gas chromatography. It finds its application in airships and helium balloons.
• Helium balloons are used to check the weather of a particular region. Helium is preferred over hydrogen though hydrogen is cheaper, as helium is readily available and hydrogen is highly inflammable. Hence, due to safety issues helium is preferred in aircraft.