Advertisements
Advertisements
प्रश्न
Give three differences between metals and non-metals.
Advertisements
उत्तर
Metals:
1. Metals are ductile i.e. can be drawn into wires.
2. Metals are malleable i.e. can be beaten to form sheets.
3. They are sonorous.
Non-metals:
1. Non-metals are mostly soft solids that cannot be drawn into wires.
2. They are mostly gases and are not malleable.
3. They do not produce sound when struck.
APPEARS IN
संबंधित प्रश्न
Correct the following statement:
CO and Co both represents cobalt.
Give Two Examples for Each of the Following: Inert Gases
Name: Three different forms of carbon
Give reason: Argon is filled in electric bulbs.
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Fill in the blank
A diatomic gaseous element is _______.
Complete the statement – an element is a pure substance made up of ____________ atoms.
Give the name of the radical - OH
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 first letter of an element is always written in ______ letter.
