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प्रश्न
Select the correct answer from the choice given below.
An impure substance
विकल्प
element
mixture
compound
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उत्तर
mixture
संबंधित प्रश्न
Name: an Inert Gas
State the number of atoms of C6H12O6
Give one use of the following substance:
Coal
Tick (√) the correct alternative from the choice given for the following statement.
The compound used as common salt is
Write the names of elements from the following symbol:
Fe
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
Explain the term ‘mixture’.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Give the chemical formula for cane sugar.
