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प्रश्न
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
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उत्तर
Element silver has the symbol derived from its Latin name ‘Argentum’
संबंधित प्रश्न
Give two examples for the following: Metals
Give reason: A frying pan is made up of steel but its handle is made up of wood.
Find the atomicity of the Following molecule:
Calcium Chloride
Write the names of elements from the following symbol:
Zn
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 |
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Elements : Combine to form compounds :: Compounds : ______.
Differentiate metals and non-metals.
Reason out
Elements are called semimetals.
Give the chemical formula for cane sugar.
