_______________ used for electroplating, is prepared by the reaction of copper(II) oxide with sulfuric acid.

Copper sulphide

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Cuprous oxide

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Copper sulphate

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Cupric sulphate

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Solution

The correct option is C Copper sulphate
As an acid, sulfuric acid reacts with most bases to give the corresponding sulfate. For example, the blue copper salt copper(II) sulfate, commonly used for electroplating and as a fungicide, is prepared by the reaction of copper(II) oxide with sulfuric acid $:$
$C u O (s) + H_{2} S O_{4} (a q) \to C u S O_{4} (a q) + H_{2} O (l)$

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Similar questions

The following is a list of methods for the preparation of salts.

A - direct combination of two elements.

B - reaction of a dilute acid with a metal.

C - reaction of a dilute acid with an insoluble base.

D - titration of a dilute acid with a solution of soluble base.

E - reaction of two solutions of salts to form a precipitate.

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case :

1. Anhydrous ferric chloride, 2. Lead chloride,

3. Sodium sulphate, 4. Copper sulphate.

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