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प्रश्न
State two important uses of following metal:
Uses of silver
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उत्तर
Uses of silver :
- It is used for making coins and ornaments.
- It is used for making high quality glass mirrors.
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संबंधित प्रश्न
Fill in the following blanks with suitable words:
A metal having low melting point is ..................... but a non-metal having very high melting point is ..............
The atomic number of an element X is 12.
(a) What must an atom of X do to attain the nearest inert gas electron configuration?
(b) Which inert gas is nearest to X?
Name two alloys of iron. What elements are present in these alloys?
Fill in the following blank with suitable word:
The alloy in which one of the metals is mercury is called an ...............
How are the properties of an alloy different from those of the constitutent elements?
Mention two uses of the following metals and non-metals
Aluminium
State two important uses of following metal:
Uses of zinc
Why is hydrogen placed with alkali metals?
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Oxygen
Write name.
Molecular formula of the common ore of aluminium.
Write name.
The nonmetal having electrical conductivity.
Write scientific reason.
Pine oil is used in froth flotation.
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
State a specific reason for using copper in electrical cables
Soft metal : Na : : hard metal : _______
Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?
The metal can be cut with a knife ______.
Metals have high melting points.
Match the following
| i. | Silica | a. | Caustic potash |
| ii. | Potassium hydroxide | b. | Sand |
| iii. | Sodium hydroxide | c. | Calamine |
| iv. | Zinc carbonate | d. | Caustic soda |
