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प्रश्न
A metal with melting point less than 50°C is
पर्याय
Gallium
Iron
Gold
Aluminium
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उत्तर
Gallium
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संबंधित प्रश्न
Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process.
Write the name and formulae of a metal hydride.
State five uses of metals
State one use of Iron.
What elements are present in steel? How are the properties of steel different from those of pure iron?
For the reduction of metal oxide, suggest a reducing agent other than carbon.
Mention two uses of the following metals and non-metals
Iodine
A metal which is neither ductile nor malleable is
Name a metal which is best conductor of electricity :
State two important uses of following metal:
Uses of aluminium
State two important uses of following metal
Uses of lead
State the position of the following in the periodic table:
Iron and zinc
Write name.
Molecular formula of the common ore of aluminium.
Write the name.
Two highly reactive metals-
Halogen reacts with acid.
Give reasons for the following.
- Aluminum foils are used to wrap food items.
- Immersion rods for heating liquids are made up of metallic substances.
- Sodium and potassium are stored in kerosene.
- Mercury is used in thermometers.
Which of the following two combinations are correct?
| Metal | Gas Evolved | |
| (i) | Copper | Yes |
| (ii) | Iron | Yes |
| (iii) | Magnesium | No |
| (iv) | Zinc | Yes |
Name two soft metals which can be cut with a knife.
Which of the following metals can displace the other two metals from their salt solutions?
Match the following
| i. | Softest metal | a. | Copper |
| ii. | Hardest metal | b. | Sodium |
| iii. | Hardest non–metal | c. | Osmium |
| iv. | Ductility | d. | Diamond |
