Class 12th General Principles & Processes of Isolating Elemen Chemistry Ncert Solutions Chemistry Class 12th

Which among the following is malachite?

Option 1 - <p><span lang="EN-IN">2CuCO</span><sub><span lang="EN-IN">3</span></sub><span lang="EN-IN">.Cu(OH)</span><sub><span lang="EN-IN">2 </span></sub></p>

Option 2 - <p><span lang="EN-IN">Cu<sub>2</sub>O </span></p>

Option 3 - <p><span lang="EN-IN">CuCO</span><sub><span lang="EN-IN">3</span></sub><span lang="EN-IN">.Cu(OH)</span><sub><span lang="EN-IN">2 </span></sub></p>

Option 4 - <p><span lang="EN-IN">Cu<sub>2</sub>S.Fe<sub>2</sub>S<sub>3</sub></span></p>

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Alok Kumar Singh | Contributor-Level 10

4 months ago

Correct Option - 3

Detailed Solution:

Malachite : CuCO3.Cu (OH)2

Azurite : 2CuCO3.Cu (OH)2

Cuprite : Cu₂O

Copper pyrite : Cu₂S.Fe₂S₃.

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Statement – I : Ellingham diagram explains the kinetics of reduction process.

Statement – II : Hydraulic washing, a method of concentration of ore is based on the differences in gravities of the ore and the gangue.

In the light of above statements choose the correct option among the following.

Ellingham diagram explains the feasibility of reduction process not the kinetics of process.

Match List – I with List – II

                  List – I                                                                               List – II

                  (Metal)                                                                             (Ores)

           (a) Aluminium                                                                (i) Siderite

           (b) Iron                                                                             (ii) Calamine

           (c) Copper                                                                       (iii) Kaolinite

           (d) Zinc                                                                             (iv) Malachite

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Aluminium - Kaolinite

Iron - &

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Chemistry Ncert Solutions Class 12th 2023

Chemistry Ncert Solutions Class 12th 2023

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