MEDIUM
Chemistry
IMPORTANT
Earn 100
The term calcination is used to denote:
50% studentsanswered this correctly
Important Questions on General Principles and Processes of Isolation of Metals (Metallurgy)
HARD
Chemistry
IMPORTANT
Which of the following ores can be described as more than one type of ore? (Example: Bauxite ore is treated as both oxide as well as hydroxide ore)
EASY
Chemistry
IMPORTANT
Identify how many "Ore names", "Type of Anion", "Metal(s) present in mineral" are correctly related
MEDIUM
Chemistry
IMPORTANT
In the Ellingham diagram for the solid metals and , gaseous oxides and are:
HARD
Chemistry
IMPORTANT
In which of the following metal extraction following steps are involved?
(i) Roasting
(ii) Carbon reduction
(iii) Electrolytic refining
MEDIUM
Chemistry
IMPORTANT
Extraction of gold involves which of the following process?
EASY
Chemistry
IMPORTANT
Which of the following reaction is not occur in blast furance during extraction of iron:
MEDIUM
Chemistry
IMPORTANT
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
MEDIUM
Chemistry
IMPORTANT
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.
