Select the correct option against the mentioned processes involved.
List - I
List - II
(P) TINCAL
(1) Thermite process
(Q) Pyrolusite
(2) Calcination
(R) Haematite
(3) Carbon reduction
(S) Cerrusite
(4) Van-Arkel process

(5) Liquation

Question

Select the correct option against the mentioned processes involved.

TestHub · Accepted Answer

P) TINCAL is a borate mineral, Na₂B₄O₇·10H₂O. It undergoes calcination (2) to remove water.and Boron is purified by van arkel method(4)

Q) Pyrolusite (MnO₂) is reduced by aluminum (Thermite process, 1).

R) Haematite (Fe₂O₃) is reduced by carbon (3) in a blast furnace or by the Thermite process (1).

S) Cerrusite (PbCO₃) undergoes calcination (2) to form PbO, which is then reduced by carbon (3). Lead can be refined by liquation (5).

Therefore, P → 2; Q → 1, 3; R → 1, 3; S → 2, 3, 5.

Chemistry - Metallurgy Question with Solution | TestHub