Based on the activity series, which of the following can displace iron from its salt?

Potassium

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Sodium

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Aluminum

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Potassium,Sodium and Aluminium

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Solution

The correct options are
A
Potassium

B
Sodium

C
Aluminum

The elements that are at the top in the activity series are highly reactive and hence can displace any metals from their salts placed below them in the reactivity series. Here sodium, potassium and calcium are placed above iron in the activity series.

Lead is below iron in the reactivity series, so it cannot displace iron from its salt.

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Similar questions

Identify the acid and base used in the formation of the following salts.

a. SODIUM ACETATE

b. SODIUM HYDROGEN CARBONATE

c. ALUMINIUM CHLORIDE

d. POTASSIUM CHLORIDE

Give reasons for the following :

(a) Sodium and potassium are stored in kerosene.

(b) Copper cannot displace zinc from its salt solution (zinc sulphate solution).

The metals which can produce amphoteric oxides are:
(a) Sodium and aluminium (b) zinc and potassium (c) calcium and sodium (d) aluminium and zinc

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