JEE Advance - Chemistry (2019 - Paper 1 Offline - No. 3)

Calamine, malachite, magnetic and cryolite, respectively, are
ZnCO3, CuCO3, Fe2O3, Na3AlF6
ZnSO4, CuCO3, Fe2O3, AlF3
ZnSO4, Cu(OH)2, Fe3O4, Na3AlF6
ZnCO3, CuCO3.Cu(OH)2, Fe3O4, Na3AlF6

Explanation

ZnCO3 - Calamine (zinc ore)

CuCO3.Cu(OH)2 - Malachite (copper ore)

Fe3O4 - Magnetite (iron ore)

Na3AlF6 - Cryolite (aluminum ore)

Thus, option (d) is correct.

Note : ( Remember all those ores names. Any one of those can be asked in the exam.)

Oxides Ores :

(1) ZnO - Zincite

(2) Fe2O3 - Haematite

(3) Fe3O4 - Magnetite (FeO + Fe2O3 mixture)

(4) Fe2O3 . 3H2O - Limonite

(5) MnO2 - Pyrolusite

(6) Cu2O - Cuprite or Ruby Copper

(7) TiO2 - Rutile

(8) FeCr2O4 - Chromite (FeO + Cr2O3)

(9) FeTiO3 - Illmenite (FeO + TiO2)

(10) Na2B4O7 . 10H2O - Borax or Tincal

(11) U3O8 - Pitch Blende

(12) SnO2 - Tin Stone or Cassiterite

(13) Ca2B6O11 . 5H2O - Colemanite (2 Cao + 3 B2O3)

(14) Al2O3 . 2H2O - Bauxite

(15) Al2O3 . H2O - Diaspore

(16) Al2O3 - Corundum

Sulphides Ores :

(1) ZnS - Zinc Blende or Sphalerite

(2) PbS - Galena

(3) Ag2S - Argentite or Silver Glance

(4) HgS - Cinnabar

(5) Cu2S - Chalcocite or Copper glance

(6) CuFeS2 - Copper pyrites or Chalco pyrites (Cu2S + Fe2S3 mixture)

(7) FeS2 - Iron pyrites or Fool's Gold

(8) 3Ag2S . Sb2S2 - Pyrargyrite or ruby silver

Halides Ores :

(1) NaCl - Rock Salt

(2) KCl - Sylvine

(3) Na3AlF6 - Cryolite [3NaF + AlF6]

(4) CaF2 - Fluorspar

(5) KCl . MgCl2 . 6H2O - Carnalite

(6) AgCl - Horn Silver

Carbonates Ores :

(1) CaCO3 - Limestone

(2) MgCO3 - Magnesite

(3) CaCO3 . MgCO3 - Dolomite

(4) ZnCO3 - Calamine

(5) PbCO3 - Cerrusite

(6) FeCO3 - Siderite

(7) CuCO3 . Cu(OH)2 or Cu2CO3(OH)2 - Malachite or Basic Copper Carbonates

(8) 2 CuCO3 . Cu(OH)2 - Azurite

Sulphates Ores :

(1) CuSO4 . 2H2O - Gypsum

(2) MgSO4 . 7H2O - Epson Salt

(3) Na2SO4 . 10 H2O - Glauber's Salt

(4) PbSO4 - Anglesite

(5) ZnSO4 . 7H2O - White Vitriol

(6) FeSO4 . 7H2O - Green Vitriol

(7) CuSO4 . 5H2O - Blue Vitriol or Chalcanthite

Nitrate Ores :

(1) KNO3 - Indian Saltpetre

(2) NaNO3 - Chile Saltpetre

Arsenides Ores :

(1) NiAs - Kupfernickel

(2) NiAsS - Nickel glance

Comments (0)

Advertisement