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प्रश्न
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
उत्तर
Oxygen
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संबंधित प्रश्न
Fill in the blank
A pure substance has definite.................. and constant ..............
Name: a Liquid Metal
Name: the Hardest Naturally Occurring Substance
Define a pure substance. How many types of pure substances do you know?
Name A substance used as an insulator.
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
Complete the table by writing the symbols of the following elements
| Element | Symbol |
| Aluminum | Al |
| Nickel | |
| Bromine | |
| Helium | |
| Magnesium |
Reason out
Elements are called semimetals.
