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प्रश्न
Write the names of elements from the following symbol:
Zn
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उत्तर
Zn- Zinc
संबंधित प्रश्न
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Give two applications of chromatography.
Give one use of the following substance:
Coal
Indicate whether the following statement is true or false:
Elements are made up of compounds
Select the correct answer from the choice given below.
The type of molecule- bromine
Select the correct answer from the choice given below.
The element which is malleable
Write the names of elements from the following symbol:
Cd
Write the names of elements from the following symbol:
Pt
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 |
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.
