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प्रश्न
Name one metal which is extracted by reduction with carbon.
उत्तर
Reduction with carbon: Zinc is a moderately reactive metal and thus, its oxide is reduced by carbon.
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संबंधित प्रश्न
Explain how, mercury is extracted from its sulphide ore (cinnabar). Give equations of the reactions involved.
The metal which can be extracted simply by heating the cinnabar ore in air is:
(a) Zn
(b) Cu
(c) Al
(d) Hg
Answer the following questions based on the extraction of aluminium from alumina by Hall - Heroult’s Process :
What is the function of cryolite used along with alumina as the electrolyte?
Name the following:
The process of heating a substance very strongly in such a way that it does not combine with oxygen.
Which method of refining is used to get 99.8% pure aluminium?
choose the most appropriate term to match the given description.
Heating of the ore in the absence of air to high temperature
Name the following:
A steel grey coloured solid non-metal.
Explain the following reaction with the balanced equation.
Dry aluminium hydroxide is ignited at 1000 °C
Explain concept with example/explain with the help of a balanced equation.
Calcination
Explain in brief types of extraction of less reactive metals according to their reactivity.
