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प्रश्न
Which metal occurs as an oxide also gives the name of their respective ore.
उत्तर
Copper is a metal that occurs as an oxide, and its ore name is cuprite [Cu2O].
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संबंधित प्रश्न
Name one metal and one non-metal which exist in liquid state at room temperature.
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What do you understand by the term non-metal?
Complete the table.
| Property of metal | Use in everyday life |
| i. Ductility | |
| ii. Malleability | |
| iii. Conduction of heat | |
| iv. Conduction of electricity | |
| v. Sonority |
From the list of characteristics given below, select the five which are relevant to non-metals and their compounds:
- Ductile
- Conduct electricity
- Brittle
- Acidic Oxides
- Basic Oxides
- Discharged at anode
- Discharged at cathode
- Ionic chlorides
- Covalent chlorides
- Reaction with dilute sulphuric acid yields hydrogen
- 1, 2 or 3 valence electrons
- 5, 6, 7 valence electrons
(Write the five letters corresponding to the correct characteristics).
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Metals like calcium and magnesium are never found in their free state in nature.
Complete the statement given below, by filling in the blank with the correct word:
The ability of a metal to produce a reasonant sound ______.
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