Question

Which ores gives co2 on heating
pyrosulite,sphalerite,azurite,cerrusite,siderite,hmenti,magnesite,calamine,anglesite

Answer 1

Answer:

Correct option is

B

argentite and cuprite are oxides

Cuprite Cu

2

O and argentite Ag

2

S.

Calamine ZnCO

3

and siderite FeCO

3

.

Zinc Blende ZnS and pyrites FeS

2

.

Malachite CuCO

3

.Cu(OH)

2

and azurite Cu

3

(CO

3

)

2

(OH)

2

.

Explanation:

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Answer 2

Answer:

Correct option is

B

argentite and cuprite are oxides

Cuprite 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.

Explanation:

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