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प्रश्न
Aluminium is not used to make :
विकल्प
Foils
Wires
Fireworks
Utensils
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उत्तर
Fireworks
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संबंधित प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Sodium is a very reactive metal. ( )
What is an alloy?
Give reasons
Aluminium is used in making aircrafts.
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
State two important uses of following metal:
Uses of gold
State two important uses of following metal
Uses of magnesium
Write name.
The device used for grinding an ore.
What is it made from? Why?
Electric cables
What is it made from? Why?
Pots and pans
The minerals from which the metal can be separated economically are called _______.
Match the columns.
| Group A | Group B |
| 1) Copper and Zinc | a) Brass |
| 2) Copper and Tin | b) Bronze |
| c) Stainless steel |
When a copper coin is dipped in the solution of silver nitrate, it shows a lustre on its surface. Explain this process with the help of a chemical equation.
Which one of the following four metals would be displaced from the solution of its salts by other three metals?
The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?
Give an example of a metal which
- is liquid at room temperature.
- is the best conductor of heat.
The liquid metal at room temperature ______.
Metals and non–metals are used for making ______, ______ and ______.
Which metals are not solid at room temperature?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
