NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

The number of carbonate ore among the following. Pyrolusite,...

The number of carbonate ore among the following.

Pyrolusite, Malachite, Diaspore, Calamine, Cassiterite, Siderite, Cerussite, Pyrite, Dolomite, Magnesite.

Correct answer

Step-by-step solution

Pyrolusite -

Mn{O}_{2}

, Malachite -

CuC{O}_{3} . Cu{\left(\text{ OH }\right)}

_{2}

, Diaspore -

A{l}_{2}{O}_{3} . {H}_{2}O

, Calamine-

ZnC{O}_{3}

, Cassiterite-

Sn{O}_{2}

Siderite-

FeC{O}_{3}

, Cerussite-

PbC{O}_{3}

, Pyrite-

Fe{S}_{2}

, Dolomite-

MgC{O}_{3 .}CaC{O}_{3}

, Magnesite-

MgC{O}_{3}

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