MEDIUM
Earn 100

Aluminium is a good conductor of heat and electricity.

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Important Questions on Group 13 Elements

MEDIUM
To design the body of an aircraft aluminium alloys are used. Give reasons.
HARD
A is a silvery-white metal. A combines with O2 to form B at 800°C, the alloy of A is used in making the aircraft. Find A and B.
MEDIUM
Aluminium is the second most malleable metal.
EASY
Aluminium has low density when compared to other metals.
MEDIUM
Explain the reaction of aluminium with water.
EASY
Why aluminium is both malleable and ductile?
MEDIUM
Write any three differences in chemical properties of boron and aluminium?
MEDIUM
Name the acid that renders aluminium passive. Why?
EASY
Aluminium is a good _____ of electricity.
EASY
Aluminium is not malleable and ductile.
EASY
Write down the electronic configuration of aluminium.
MEDIUM
Explain the thermal and electrical properties of aluminium.
MEDIUM
In the alumino thermic process the role of Al is _____.
EASY
What are the physical properties of aluminium?
MEDIUM
List six uses of aluminium. For each, say which properties of the metal make it suitable.
MEDIUM

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

HARD
Metal A belongs to period 3 and group 13. A in red-hot condition reacts with steam to form B. A with strong alkali forms C. Find A, B and C with reactions.