Hematite
Magnetite
Siderite
Chalcopyrite
✅ The correct answer is option A.
Chemical Process MCQs
Sulphur addition in soap is done to
Improve the soap texture
Cure pimples & dandruff
Fasten lather formation
Increase its cleansing action
✅ The correct answer is option B.
Esterification reaction
Produces soap
Is reversible
Is a reaction between an alcohol and an organic acid
All of the above
✅ The correct answer is option D.
__________ are used as corrosion inhibitor for iron & steel in aqueous solutions.
Phosphates
Chromates
Sulphates
Bi-carbonates
✅ The correct answer is option B.
Sudden temperature fluctuation does not affect pyrex glass, because of its
Low co-efficient of expansion
High co-efficient of expansion
High melting point
Both B and C
✅ The correct answer is option A.
In industrial nomenclature, alcohol means
Butyl alcohol
Propyl alcohol
Ethanol
Methyl alcohol
✅ The correct answer is option C.
A mineral is termed as ‘ore’, if
A metal can be economically extracted from it
It contains ≥ 40% metal
The metal present in it is costly
All of the above
✅ The correct answer is option A.
Fusion of bauxite and __________ produces high alumina cement.
Alum
Limestone
Coke
Quartz
✅ The correct answer is option B.
Alcohol is produced by the
Oxidation of an aldehyde
Hydrolysis of an ether
Esterification of a fat
None of these
✅ The correct answer is option B.
Glycerine is a by-product of the __________ industry.
Soap
Detergent
Oil hydrogenation
Paint
✅ The correct answer is option A.