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.

T T T T

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F T F F

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F F T T

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T T F T

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Solution

The correct option is B T T T T
Cuprite, limorite and zincite are oxide ores.
Cuprite $C u_{2} O$ , Limorite $F e_{2} O_{3} .3 H_{2} O$ , Zincite $Z n O$ ;
Dolomite $= C a C O_{3} . M g C O_{3}$ .
Chalcocyte $C u_{2} S$ , and azumite $3 C u C O_{3} . C u (O H)_{2}$ ;
Mica and feldspar both are aluminium ore.

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Consider the following statements and arrange in the order of true/false as given in the codes.S1: Cuprite, Limorite and Zincite are oxide ores.S2: Dolomite contains CaCO3 and MgCO3.S3: Chalcocyte and azurite are ores of copper.S4: Feldspar and mica minerals contain aluminium.

The correct option is B T T T TCuprite, limorite and zincite are oxide ores.Cuprite Cu2O, Limorite Fe2O3.3H2O, Zincite ZnO; Dolomite =CaCO3.MgCO3.Chalcocyte Cu2S, and azumite 3CuCO3.Cu(OH)2;Mica and feldspar both are aluminium ore.