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प्रश्न
With reference to the following metals state their use in daily life metal:
Aluminium
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उत्तर
Aluminium:
- Making utensils as a metal, it is easily moulded in utensils.
- In paints – Aluminium powder is mixed with linseed oil as it is anti-corrosive in nature.
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संबंधित प्रश्न
A metal having low melting point is ______ but a non-metal having very high melting point is ______.
The atomic number of an element Y is 16.
- What must an atom of Y do to achieve the nearest inert gas electron arrangement?
- Which inert gas is nearest to Y?
What is a thermite reaction? Explain with the help of an equation.
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
Mention two uses of the following metals and non-metals
Iodine
Give reasons
Magnesium is used in fire works.
A metal with melting point less than 50°C is
Tick (√) the most appropriate answer.
Graphite is used :
State two important uses of following metals:
Uses of iron
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
Complete the following flowchart.
Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?
Which of the following property is generally not shown by metals?
Which one of the following metals do not react with cold as well as hot water?
Metals are usually solids or gases at room temperature.
Give an example of a metal which
- is liquid at room temperature.
- is the best conductor of heat.
The liquid metal at room temperature ______.
Why do metals appear shiny?
