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Reaction of Metals with Oxygen (Burnt in Air)

On strong hea...

Question

On strong heating, zinc metal burns in presence of air to form :

A

zinc chloride

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B

zinc sulphide

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C

zinc oxide

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D

zinc hydroxide

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Solution

The correct option is B zinc oxide
Zinc metal burns in air only on strong heating to form zinc oxide.

$Z i n c + O x y g e n Δ - \to Z i n c o x i d e$

$2 Z n + O_{2} Δ - \to 2 Z n O$

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Q. Metal A burns in air, on heating, to form an oxide A₂O₃ whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A₂O₃ and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A₂O₃?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.

Q. Zinc oxide is reduced to zinc metal by heating with:

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Reaction of Metals with Oxygen (Burnt in Air)

Standard X Chemistry

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