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प्रश्न
State two important uses of the following metal.
Uses of magnesium
Write the uses of magnalium metal.
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उत्तर
- It burns with a dazzling white flame and hence is used in fireworks.
- It is used in the making of alloys, such as magnalium. This alloy is used in making the frame of aeroplanes.
संबंधित प्रश्न
What happens when Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.
State five uses of metals.
State one use of the following metal:
Silver
The atomic number of an element X is 12.
- What must an atom of X do to attain the nearest inert gas electron configuration?
- Which inert gas is nearest to X?
Name two alloys of iron. What elements are present in these alloys?
Which property of ‘solder’ alloy makes it suitable for welding electrical wires?
Mention two uses of the following metals and non-metals
Aluminium
Give reasons
Magnesium is used in fire works.
Give two uses of Germanium
Fill in the blank
_______ is a soft metal.
Aluminium is not used to make :
State two important uses of following metal
Uses of mercury
Write name.
Alloy of sodium with mercury.
Write name.
Molecular formula of the common ore of aluminium.
Write name.
The device used for grinding an ore.
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Write name of any element present in the same group as X
State the position of the following in the periodic table:
Halogens
What is it made from? Why?
Ornaments
With reference to the following metals state their use in daily life metal:
Aluminium
With reference to the following metals state their use in daily life metal:
Silver
Soft metal : Na : : hard metal : _______
Write the name.
Two highly reactive metals-
When a copper coin is dipped in the solution of silver nitrate, it shows a lustre on its surface. Explain this process with the help of a chemical equation.
Complete the following flowchart.
Which one of the following metals do not react with cold as well as hot water?
Metals are usually solids or gases at room temperature.
The metal can be cut with a knife ______.
Why do metals appear shiny?
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.
