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प्रश्न
Complete the statement given below by filling in the blank with the correct word.
An element is a pure substance which cannot be broken down by physical or _________ methods.
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उत्तर
An element is a pure substance which cannot be broken down by physical or chemical methods.
संबंधित प्रश्न
Name: a Liquid Non-metal
Give one use of the following substance:
Brass
Fill in the blank
A diatomic gaseous element is _______.
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
Differentiate between elements and compounds.
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.
Complete the table by writing the symbols of the following elements
| Element | Symbol |
| Aluminum | Al |
| Nickel | |
| Bromine | |
| Helium | |
| Magnesium |
