MEDIUM
JEE Main/Advance
IMPORTANT
Earn 100

Froth floatation:

50% studentsanswered this correctly

Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)

MEDIUM
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 52
Which of the following reduction reactions are actually employed in the commercial extraction of metals?
MEDIUM
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 54
How many of the following minerals are oxides of metals/metalloids:
(i) Bauxite (ii) Corundum (iii) Dolomite (iv) Malachite (v) Magnetite (vi) Pyrolusite (vii) Argentite (viii) Horn silver (ix) Quartz (x) Cryolite (xi) Siderite (xii) Zincite (xiii) Calamine (xiv) Sylvine (xv) Carnallite
HARD
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 55

Calculate the number of metals which can be extracted by self-reduction method:

Cu, Al, Fe, Mg, Zn, Sb, Sn, Pb

EASY
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 56

Poling process is applied when impurity is the compound of a metal and a non-metal. Atomic number of non-metal is:

MEDIUM
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 57

How many of the following metals can be purified by electro-refining by using metal as an impure anode.

Cu, Al, Pb, Sn, Ag, Zn, Ca, Mg

MEDIUM
JEE Main/Advance
IMPORTANT
Alpha Question Bank for Engineering: Chemistry>Chapter 18 - General Principles and Processes of Isolation of Metals (Metallurgy)>Exercise-4>Q 58

How many of the following refining processes are correctly matched with their element?
Liquation-Tin, Fractional distillation-zinc, Zone refining-Germanium, Poling-Tin, Van Arkel-Titanium, Cupellation-Silver.