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प्रश्न
Give reason: Argon is filled in electric bulbs.
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उत्तर
Argon is an inert gas and protects the element of bulb from oxidation and burning. Hence increases bulb’s life.
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संबंधित प्रश्न
Define: Elements
Fill in the blank
A liquid non-metal is _______.
Indicate whether the following statement is true or false:
Molecules can exist independently.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Write the names of elements from the following symbol:
Zn
Explain the difference between Metals and non-metals.
Select the correct answer from the choice in the bracket.
The least reactive metal.
Select the correct answer from A, B, C, D & E for the statement given below :
A diatomic molecule.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
