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Standard X

Chemistry

Extraction of Iron

Among the fol...

Question

Among the following statements, the incorrect one is :

calamine and siderite are carbonates

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argentite and cuprite are oxides

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zinc blende and pyrites are sulphides

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malachite and azurite are ores of copper

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Solution

The correct option is B argentite and cuprite are oxides
Cuprite $C u_{2} O$ and argentite $A g_{2} S$ .
Calamine $Z n C O_{3}$ and siderite $F e C O_{3}$ .
Zinc Blende $Z n S$ and pyrites $F e S_{2}$ .
Malachite $C u C O_{3} . C u (O H)_{2}$ and azurite $C u_{3} (C O_{3})_{2} (O H)_{2}$ .

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Similar questions

Q. How many of the following ores belong to either aluminium or copper?
Bauxite, Siderite, Diaspore, Cuprite, Malachite, Carborundum, Kaolinite, Azurite,
Calamine, Cerussite, Cassiterite, Dolomite

Q. Consider the following statements and arrange in the order of true/false as given in the codes.

S_{1}

: Cuprite, Limorite and Zincite are oxide ores.

S_{2}

: Dolomite contains

C a C O_{3}

and

M g C O_{3}

S_{3}

: Chalcocyte and azurite are ores of copper.

S_{4}

: Feldspar and mica minerals contain aluminium.

From the given set of minerals, the number of ores of copper is/are ___
Chalcocite, pyrargyrite, cuprite, carnallite, covellite, sphalerite, azurite, malachite, cryolite

S_{1} :

In electrolytic refining, the impurities from the blister copper deposits anode mud which contains antimony, selenium, tellurium, silver, gold and platinum. (from copper pyrites)

S_{2} :

The low grade ore of copper is leached with acid and is then treated with scrap iron or

H_{2}

to get copper.

S_{3} :

Siderite, curpite and argentite are oxide ores.

S_{4} :

Zone refining is very useful for producing semiconductor and other metals of very high purity, e.g., germanium, silicon, boron, gallium and indium.
Which of the following option is correct.
(T: True, F: False)

Q. Match the column (I) and (II) and select the correct answer using the codes given below.

Column-I	Column-II
(a) Argentite	(1) Halide ore of magnesium
(b) Cuprite	(2) Carbonate ore of iron
(c) Siderite	(3) Oxide ore of copper
(d) Carnallite	(4) Sulphide ore of silver

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Among the following statements, the incorrect one is :

The correct option is B argentite and cuprite are oxidesCuprite Cu2O and argentite Ag2S.Calamine ZnCO3 and siderite FeCO3.Zinc Blende ZnS and pyrites FeS2.Malachite CuCO3.Cu(OH)2 and azurite Cu3(CO3)2(OH)2.

The correct option is B argentite and cuprite are oxides
Cuprite $C u_{2} O$ and argentite $A g_{2} S$ .
Calamine $Z n C O_{3}$ and siderite $F e C O_{3}$ .
Zinc Blende $Z n S$ and pyrites $F e S_{2}$ .
Malachite $C u C O_{3} . C u (O H)_{2}$ and azurite $C u_{3} (C O_{3})_{2} (O H)_{2}$ .