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Standard X

Chemistry

Displacement Reactions

Aluminium rea...

Question

Aluminium reacts with copper sulphate to produce

3Cu and Al₂(SO₄)₃

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CuO and Al₂(SO₄)₃

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Cu, Al₂S₃ and SO₂

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CuO, Al₂S₃ and SO₂

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Solution

The correct option is A
3Cu and Al₂(SO₄)₃

The given reaction is a displacement reaction. As aluminium is more reactive than copper, it displaces copper from the copper sulphate solution to produce copper and aluminium sulphate.

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Similar questions

68.4 g

A l_{2} (S O_{4})_{3}

is dissolved in enough water to make

500 m L

of solution. If aluminium sulphate dissociates completely then molar concentration of aluminium ions

(A l^{3 +})

and sulphate ions

(S O_{4}^{2 -})

in the solution are respectively (molar mass of

A l_{2} (S O_{4})_{3} = 342 g m o l^{- 1})

Q. Among

A l_{2} O_{3}, S i O_{2}, P_{2} O_{3}

and

S O_{2}

the correct order of acid strength is :

Q. Aluminium building materials have a hard transparent protective coating of aluminium oxide formed by reaction with oxygen in air. The sulphuric acid,

H_{2} S O_{4}

, in acid rain dissolves this protective coating and forms aluminium sulphate and water.
If

H_{2} S O_{4}

reacts with

4.0

moles of

A l_{2} O_{3}

, how many moles of

A l_{2} (S O_{4})_{3}

are formed?

Q. Among

A l_{2} O_{3}, S i O_{2}, P_{2} O_{3}, S O_{2}

the correct order of acid strength is

Q. Balance the following equations:
(i)

Na + O_{2} \underset{}{\to} {Na}_{2} O

(ii)

H_{2} O_{2} \underset{}{\to} H_{2} O + O_{2}

(iii)

Mg (OH)_{2} + HCI \overset{}{\to} {MgCl}_{2} + H_{2} O

(iv)

Fe + O_{2} \underset{}{\to} {Fe}_{2} O_{3}

(v)

Al (OH)_{3} \underset{}{\to} {Al}_{2} O_{3} + H_{2} O

(vi)

{NH}_{3} + CuO \underset{}{\to} Cu + N_{2} + H_{2} O

(vii)

{Al}_{2} ({SO}_{4})_{3} + NaOH \underset{}{\to} Al (OH)_{3} + {Na}_{2} {SO}_{4}

(viii)

{HNO}_{3} + Ca (OH)_{2} \underset{}{\to} Ca ({NO}_{3})_{2} + H_{2} O

(ix)

NaOH + H_{2} {SO}_{4} \underset{}{\to} {Na}_{2} {SO}_{4} + H_{2} O

(x)

{BaCl}_{2} + H_{2} {SO}_{4} \underset{}{\to} {BaSO}_{4} + HCl

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Aluminium reacts with copper sulphate to produce

The correct option is A 3Cu and Al2(SO4)3 The given reaction is a displacement reaction. As aluminium is more reactive than copper, it displaces copper from the copper sulphate solution to produce copper and aluminium sulphate.

The correct option is A
3Cu and Al₂(SO₄)₃

The given reaction is a displacement reaction. As aluminium is more reactive than copper, it displaces copper from the copper sulphate solution to produce copper and aluminium sulphate.