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Concentration of Ore

A metal that ...

Question

A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the prescence of air. Identify the metal and its ore and the give the reaction involved?

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Solution

Since it is metal and liquid in state, it must be $H g$
$H g S + O_{2} \to H g + S O_{2}$

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Q. Question 47
A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal and its ore and give the reaction involved.

Q. A metal that exists as a liquid at room temperature is obtained by heating its sulphide in the presence of air. Identify the metal.

Name the following:

(a) A metal which is liquid at room temperature.

(b) The process of heating an ore to a high temperature in the presence of air.

(c) The compound formed by the reaction between calcium oxide and silica.

(d) A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.

(e) Name an allotrope of a non-metal that allows electricity to pass through it.

Identify the non-metal which exists in liquid state at room temperature $(25^{0} C)$ .

Q. (a) Name two metals which are found in free state in nature.
(b) What chemical process is used for extracting a metal from its oxide ore? Name one metal which is extracted by this method.
(c) Describe the extraction of zinc metal from its sulphide ore as well as its carbonate ore. Write equations of all the reactions involved.

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