Advertisements
Advertisements
प्रश्न
State two important uses of following metal:
Uses of aluminium
State two uses of aluminium.
Name two uses of aluminium.
Describe uses of aluminium.
Mention important uses of aluminium.
Advertisements
उत्तर १
- Aluminium foils are used for packing food stuff, medicines etc.
- It is used for making high voltage electric transmission wires.
- It is used for making pots, pans and parts of automobiles.
उत्तर २
- Electrical transmission cables are made of aluminium.
- Thermite welding and the Goldschmidt aluminothermic method both use aluminium powder as a reducing agent.
- It is used in making household utensils and novelty articles.
- Aluminium foil is used for wrapping soaps, cigarettes, confectionary, etc.
- It is used to create silvery paints to cover iron and other surfaces.
- It serves as a deoxidiser for eliminating blow holes in metallurgy.
- Aluminium’s low density, good thermal and electrical conductivity, and resistance to corrosion make it a popular material in the automotive and aircraft industries.
Notes
Students can refer to the answers according to their question.
APPEARS IN
संबंधित प्रश्न
What is an alloy?
For the reduction of a metal oxide, suggest a reducing agent other than carbon.
Write ‘true’ or ‘false’ for the following statement.
Iodine acts as an antiseptic in the form of a tincture of iodine.
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
Salt of silver, such as ________ is used for making photographic films.
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
Statements given below are incorrect. Write the correct statements :
Zinc is used for making power transmission wires.
State two important uses of following metal:
Uses of zinc
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Write name.
The device used for grinding an ore.
Write name.
The reagent that dissolves noble metals.
What is it made from? Why?
Ornaments
What is it made from? Why?
Pots and pans
With reference to the following metals state their use in daily life metal:
Zinc
Give a reason why a green deposit is seen on the surface of an article of copper
Name the following:
The chemical compound responsible for the green deposit on the surface of articles of copper.
Halogen reacts with acid.
Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.
Complete the following flow chart.
Which one of the following metals do not react with cold as well as hot water?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
