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प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Sodium is a very reactive metal. ( )
विकल्प
True
False
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उत्तर
Sodium is a very reactive metal. (T)
संबंधित प्रश्न
A metal having low melting point is ______ but a non-metal having very high melting point is ______.
Give reasons
Magnesium is used in fire works.
State the position of the following in the periodic table:
Aluminium
Write name.
The device used for grinding an ore.
Write name.
The nonmetal having electrical conductivity.
Write scientific reason.
Pine oil is used in froth flotation.
What is it made from? Why?
Electric cables
Soft metal : Na : : hard metal : _______
In the following figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.
- ______ is a metal.
- Metals are good ______ of electricity.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the metallic element.
