Which among the following substances are used to prepare sulphur dioxide in the laboratory?

Copper turnings

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Iron filings

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Concentrated Sulphuric Acid

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Concentrated Hydrochloric Acid

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Solution

The correct options are
A Copper turnings
C Concentrated Sulphuric Acid
Copper turnings and concentrated sulphuric acid are used in the preparation of sulphur dioxide.
The heating of concentrated sulphuric acid with copper turnings
yields copper sulphate, sulphur dioxide and water.

$C u + 2 H_{2} S O_{4} h e a t - -- \to C u S O_{4} + S O_{2} + 2 H_{2} O$

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Similar questions

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equations for the reactions from which the following gases are obtained, using dilute sulphuric acid as one of the reactants:
(i) Hydrogen
(ii) Carbon dioxide
(iii) Sulphur dioxide

Q. Sulphuric acid can be used In the laboratory to prepare the following substances :
(a) Hydrogen (b) Carbon dioxide
(c) Carbon monoxide (d) Sulphur dioxide
(e) Hydrogen chloride (f) Hydrogen sulphide
(g) Nitric acid.
1. Derive a balanced equation for each of the shove preparation.
2. In which of the reactions would you use (give numbers only): (i) Dilute Sulphuric acid, (ii) Sulphuric acid.
3. State the chemical property of sulphuric acid illustrated in each of these reactions.

Q. Name the metal and the acid to be selected to prepare sulphur dioxide in the laboratory.

Q. Which two equipments would you choose to prepare and collect sulphur dioxide gas in the laboratory?

(1) I and IV
(2) I and III
(3) II and IV
(4) II and III

(a) Name the chemicals required for the preparation of carbon dioxide in the laboratory.

(b) How will you collect the gas?

(d) Why is sulphuric acid not used for the preparation of carbon dioxide in the laboratory?

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