Podcast
Questions and Answers
What metal is used to make electric wires?
What metal is used to make electric wires?
Copper
What metal is used to make ornaments?
What metal is used to make ornaments?
Gold, platinum, silver
What metal is used for the filament of a bulb?
What metal is used for the filament of a bulb?
Tungsten
What metal is used to create silvery foil over sweets?
What metal is used to create silvery foil over sweets?
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What metal is used to make foils to wrap food?
What metal is used to make foils to wrap food?
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What metal is used to make pipes to supply water?
What metal is used to make pipes to supply water?
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Study Notes
Properties and Uses of Elements
- Gold, platinum, and silver are lustrous, do not tarnish in air, and are used to make ornaments and jewelry.
- Copper is a good conductor of heat and electricity, used to make utensils, electric wires, and can be mixed with zinc and tin to produce brass and bronze.
- Iron is strong, easily available, and used to make heavy tools and machines.
- Diamond is the hardest naturally occurring substance, used as a gem, and impure diamond is used to cut glass.
- Graphite marks paper black, used to make pencil leads, and is also used to make lubricants.
Other Substances and Their Uses
- Argon and neon, being inert, are used in electric bulbs to prevent the tungsten filament from destruction.
- Coal, wood, and natural gas are used as fuels due to their heat energy production.
- Water is a universal solvent, carries dissolved substances in blood and sap, and has various uses in daily life.
- Plastic is a non-conductor, used as an insulator, and has various applications in making bags, shoes, utensils, etc.
- Sand is used to prepare glass.
Different Forms of Carbon
- Diamond, graphite, and coal are all different forms of element carbon.
Applications of Metals
- Electric wires are made of copper.
- Ornaments are made of gold, platinum, or silver.
- The filament of a bulb is made of tungsten.
- Silvery foil over sweets is made of aluminium.
- Foils to wrap food are made of aluminium.
- Pipes to supply water are made of iron or copper.
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Description
This quiz covers the properties and uses of various elements and compounds, such as gold, platinum, and silver, and their applications in everyday life.
