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प्रश्न
Define: Formula
उत्तर
Formula: Formula is a short way of representing the molecule of an element or a compound
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संबंधित प्रश्न
Name the technique that you use if only the solid component of a solution is required.
What are the different types of mixtures ?
Define: Compounds
Define: Atom
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
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 |
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
Name the element which is used for making computer chips.
