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E is an element that ore is rich in $E_{2} O_{3}$ . $E_{2} O_{3}$ is not affected by water. It forms two chlorides, ${ECl}_{2}$ and ${ECl}_{3}$ . The element E is

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Aluminium

Zinc

Copper

Iron

answer is D.

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Detailed Solution

The element E is Iron.
Iron forms the oxide that is iron oxide and has a molecular formula of

{Fe}_{2} O_{3}

. Iron can also react with chlorine to form iron(III) chloride and iron(II) chloride.

{Fe}_{2} O_{3} + HCl \to {FeCl}_{2} + H_{2}

Haematite is the oxide of iron and it is an ore of iron. Haematite does not react with water.

{Fe}_{2} O_{3} + H_{2} O \to 2 FeOH

So, all these properties belong to iron, so, the element is iron.

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