General Principles and Processes of Isolation of Metals - Topic Wise Multiple Choice Questions (MCQ)
Topic Wise free General Principles and Processes of Isolation of Metals MCQ for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test
6 )
An ore after concentration was found to have basic impurities. The flux which can
Select correct option from the following options
a) CaCO3 b) SiO2
c) FeO d) Ca(OH) 2
a
b ✔
c
d
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7 )
The slag obtained during manufacture of Cu is
CaSiO3
FeSiO3 ✔
CuSiO3
FeO
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8 )
Choose the correct statement
All ore are mineral ✔
All mineral are ores
Minerals are not ores
a & b
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9 )
The principle used in zone refining
Fractional distillation
Adsorption
Fractional crystallisation ✔
Chromatographic separation
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10 )
In the reaction 2MO(s) + C(s) → M(s) + CO2(g) the entropy of the reaction will
Decreases
Increases ✔
Remain constant
May increases or decreases
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