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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
विकल्प
sodium chloride
calcium chloride
sodium oxide
hydrogen chloride
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उत्तर
sodium chloride
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संबंधित प्रश्न
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Correct the following statement:
CO and Co both represents cobalt.
Give two applications of chromatography.
Name: Two substances used to make jewellery.
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
Give the name of the radical - CO3
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Give an account of elements known to us.
Reason out
Elements are called semimetals.
