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Chemistry

Chemistry
The mineral containing both magnesium and calcium is

calcite
dolomite
carnallite
magnesite

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Chemistry
What is the principal ore of aluminium ?

Lignite
Bauxite
Dolomite
Copper

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Chemistry
Which is a natural colloid ?

Blood
Urea
Cane-sugar
Sodium chloride

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Chemistry
For generation of biogas, the materials commonly used are

Aquatic plants
Animal wastes
Forest residues
Crop residues

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Chemistry
The molecular formula of phosphorous is

P1
P4
P3
P2

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Chemistry
The presence of Cobalt in Vitamin B12 was established for the first time by

Borax-Bead test
Spectroscopy
Hydrolysis test
Sodium Nitroprusside test

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MORE MCQ ON Chemistry

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