Advertisements
Advertisements
प्रश्न
Give an example of a metal which is the best conductor of heat.
उत्तर
- Silver
- Gold
- Copper
APPEARS IN
संबंधित प्रश्न
Which of the following statements is correct?
Fill in the blanks:
Iron is ________ reactive than copper.
Match the substances given in Column A with their uses given in Column B.
| A | B | ||
| 1 | Gold | a | Thermometers |
| 2 | Iron | b | Electric wire |
| 3 | Aluminium | c | Wrapping food |
| 4 | Carbon | d | Jewellery |
| 5 | Copper | e | Machinery |
| 6 | Mercury | f | Fuel |
Write the name and formulae of a non-metal hydride.
Name the non-metal which is used in the vulcanisation of rubber.
"Is malleable and ductile". This best describes:
(a) a metal
(b) a compound
(c) a non-metal
(d) a solution
Name a metal that is brittle
Name a metal that can be cut with knife
Name a non-metal that is used for cancer therapy
Tick (√) the most appropriate answer.
Copper metal is used in :
What do you understand by the term non-metal?
State any five physical properties of a non-metal.
Explain how the activity series accounts for each of the following:
reaction with water
Which metal occurs as a halide also gives the name of their respective ore.
A metallic oxide which cannot be reduced by normal reducing agents:
How are metals like sodium, potassium, and calcium obtained? Give equations.
Name the following:
An Alloy of copper and Zinc.
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain non-metal as one of its constituents?
Non-metals are non-malleable.
The non – metal which is liquid at room temperature is ______.
