General Principles and Processes of Isolation of Metals — JEE Advanced PYQs

The correct statement(s) related to processes involved in the extraction of metals is(are)
(A) Roasting of Malachite produces Cuprite.
(B) Calcination of Calamine produces Zincite.
(C) Copper pyrites is heated with silica in a reverberatory furnace to remove iron.
(D) Impure silv …

The electrochemical extraction of aluminum from bauxite ore involves.

The correct option(s) related to the extraction of iron from its ore in the blast furnace operating in the temperature range $900-1500\mathrm{K}$ is(are)

The correct statement(s) related to the metal extraction processes is(are)

Which among the following statement(s) is(are) true for the extraction of aluminium from bauxite?

Tin is obtained from cassiterite by reduction with coke. Use the data given below to determine the minimum temperature (in K ) at which the reduction of cassiterite by coke would take place.
At …

Calamine, malachite, magnetite and cryolite, respectively are

The cyanide process of gold extraction involves leaching out gold from its ore with CN⁻ in the presence of Q in water to form R. Subsequently, R is treated with T to obtain Au and Z. Choose the correct option(s).

Consider the following reactions (unbalanced) …

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace such that the contents undergo self-reduction. The weight (in kg) of Pb produced per kg of …

Extraction of copper from copper pyrite $\left({\mathrm{CuFeS}}_2\right)$ involves

Match the anionic species given in Column I that are present in the ore(s) given in Column II.
| | (T) Argentite …

Upon heating with ${\mathrm{Cu}}_2\mathrm{S}$, the reagent(s) that give copper metal is/are

Sulfide ores are common for the metals

The carbon-based reduction method is NOT used for the extraction of

In the cyanide extraction process of silver from argentite ore, the oxidizing and reducing agents used are

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are

Extraction of metal from the ore cassiterite involves

Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite $\left({\mathrm{CuSO}}_4\cdot 5{\mathrm{H}}_2\mathrm{O}\right)$, atacamite …

Native silver metal forms a water soluble complex with a dilute aqueous solution of NaCN in the presence of

Match the conversions in Column I with the type(s) of reaction(s) given in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS.

Column I
(A) $\mathrm{PbS}\to \mathrm{PbO}$
(B) …

Match the extraction processes listed in Column I with metals listed in Column II:

Column I
(A) Self reduction
(B) Carbon reduction
(C) Complex formation and displacement by metal
(D) Decomposition of iodide

Column II
(P) Lead
(Q) Silver
(R) Copper
(S) Boron