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प्रश्न
Aluminium is not used to make :
विकल्प
Foils
Wires
Fireworks
Utensils
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उत्तर
Fireworks
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संबंधित प्रश्न
State one use of the following metal:
Copper
State one use of the following metal:
Gold
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?
The electrical conductivity and melting point of an alloy is ______ than that of pure metals.
Mention two uses of the following metals and non-metals
Iodine
Tick (√) the most appropriate answer.
Graphite is used :
Write name.
Molecular formula of the common ore of aluminium.
Write scientific reason.
Generally the ionic compounds have high melting points.
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
Give reasons for the following:
Most metals conduct electricity well.
Name the following:
A metal used in flexible pipes.
Name the following:
A halogen which is a solid at room temperature.
The electronic configurations of three elements X, Y and Z are X – 2, 8; Y – 2, 8, 7 and Z – 2, 8, 2. Which of the following is correct?
Which of the following metals can displace the other two metals from their salt solutions?
All gases are ______.
Sodium is a hard metal.
Why do metals appear shiny?
Compare the conductivity of metals and non–metals.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
Metal atoms tend to have a maximum of ______ electrons in the outermost shell.
