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Oxides and Oxoanions

Is Copper Gla...

Question

Is Copper Glance An Oxide Ore?

A

True

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B

False

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Solution

The correct option is B False
Copper glance is the principal sulfide ore of copper.
Its chemical name is Copper(I) sulfide and its chemical formula is ${Cu}_{2} S$ .
It is used for the extraction of copper.
It is greyish black in color.
It is not an oxide ore but a sulfide ore.
Therefore, the given statement is false.

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Similar questions

Q. Copper occurs as a/an _________.
(a) oxide ore (b) halide ore (c) carbonate ore (d) sulphide ore

Q. (a) Which metal is extracted from calamine ore?
(b) Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.
(c) How is copper extracted from its sulphide ore (copper glance), Cu₂S? Explain with equations of the reactions involved.
(d) What is an alloy? Give two examples of alloys.
(e) How are the properties of an alloy different from those of the constitutent elements?

Q. Match column A with column B and select the correct option:

	Column A (Ore)		Column B (Nature of ore)
(a)	Copper glance	(i)	Sulphate ore
(b)	Calamine	(ii)	Halide ore
(c)	Rock salt	(iii)	Sulphide ore
(d)	Epsom salt	(iv)	Carbonate ore

Q. Given below are two statements :

Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper .

Statement II : It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using depressants in a froth flotation method .

Choose the most appropriate answer from the options given below :

Q. Silver glance or argentite is the_________.

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