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प्रश्न
Name a non-metal that is used for filling into electric bulbs
उत्तर
Argon
APPEARS IN
संबंधित प्रश्न
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 |
Name a metal used in making electric cables
Name a non-metal that a good conductor of heat and electricity
Name a non-metal that is hardest naturally occurring substance
Name a non-metal that is lustrous
Write ‘True’ or ‘False’ in front of following statement.
Stainless steel is used for making power transmission wires.
Tick (√) the most appropriate answer.
A metal which is a poor conductor of electricity is:
State two important uses of following non-metal
Uses of oxygen
What are metalloids: Give examples.
Name:
a metal which can float on water
`M+ HCl → MCl_2 +—`
Which metals do not corrode easily?
Complete the table.
| Property of metal | Use in everyday life |
| i. Ductility | |
| ii. Malleability | |
| iii. Conduction of heat | |
| iv. Conduction of electricity | |
| v. Sonority |
Name a metal which does not corrode easily.
Give reason for the following:
Potassium reacts vigorously with cold water while copper does not react with water or steam.
Select the appropriate option for the following statement:
The element placed in the extreme left of the Modern Periodic Table.
Select the appropriate option for the following statement:
The element which shows properties of both metals and non-metals.
Melting point of most metal is ______ than non-metal.
Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?
Which non-metal is essential for our life and all living beings inhale it during breathing?
