The chemical which can be used to separate a mixture of carbon powder and sulphur powder successfully is :

(a) carbon dioxide (b) hydrochloric acid (c) hydrogen sulphide (d) carbon disulphide

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Solution

(d) carbon disulphide

First dissolve the mixture into carbon disuphide(CS2) solvent. The sulphur will dissolve and carbon will remain as residue. Evaporate the filtrate to obtain sulphur.

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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.
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Question 12.
One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is
(a) hydrochloric acid
(b) tartaric acid
(c) acetic acid
(d) sulphuric acid

Question 12.
One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is
(a) hydrochloric acid
(b) tartaric acid
(c) acetic acid
(d) sulphuric acid

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The chemical which can be used to separate a mixture of carbon powder and sulphur powder successfully is : (a) carbon dioxide (b) hydrochloric acid (c) hydrogen sulphide (d) carbon disulphide

(d) carbon disulphide First dissolve the mixture into carbon disuphide(CS2) solvent. The sulphur will dissolve and carbon will remain as residue. Evaporate the filtrate to obtain sulphur.

The chemical which can be used to separate a mixture of carbon powder and sulphur powder successfully is :

(a) carbon dioxide (b) hydrochloric acid (c) hydrogen sulphide (d) carbon disulphide

(d) carbon disulphide

First dissolve the mixture into carbon disuphide(CS2) solvent. The sulphur will dissolve and carbon will remain as residue. Evaporate the filtrate to obtain sulphur.