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  • Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores if iron is______________.

Among the following ores Bauxite, Siderite, Cuprite, Calamine, Haematite, Kaolinite, Malachite, Magnetite, Sphalerite, Limonite, Cryolite, the number of principal ores if iron is______________.

Option: 1

4


Option: 2

--


Option: 3

-


Option: 4

-


Answers (1)

best_answer

\mathrm{1)\: Bauxite - AlOx(OH) _{3-2 x} }
\mathrm{2)\, Siderite -\mathrm{FeCO}_{3} }
\mathrm{3)\, Cuprite - \mathrm{Cu}_{2} \mathrm{O}}
\mathrm{4)\, Calamine - \mathrm{ZnCO}_{3}}
\mathrm{5)\, Haematite -\mathrm{Fe}_{2} \mathrm{O}_{3}}
\mathrm{6)\, Kaolinite -\left[\mathrm{Al}_{2}\left(\mathrm{O} \mathrm{H}_{4} \mathrm{Si}_{2} \mathrm{O}_{5}\right]\right.}
\mathrm{7)\, Malachite - \left[\mathrm{CuCO}_{3} \cdot \mathrm{Cu}(\mathrm{OH})_{2}\right]}
\mathrm{8)\, Magentite -\mathrm{Fe}_{3} \mathrm{O}_{4}}
\mathrm{9)\,Sphalerite - zns (zinc \, Blende)}
\mathrm{10)\,Limonite -2 \mathrm{Fe}_{2} \mathrm{O}_{3} .3 \mathrm{H}_{2} \mathrm{O}}
\mathrm{11)\,Crydite -\mathrm{Na}_{3} Al \mathrm{F}_{6}}

Among above total 4 ores has iron as principal ores.

Ans = 4.

Posted by

Suraj Bhandari

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