20% oleum
65% oleum
78%H₂SO₄
98%H₂SO₄
✅ The correct answer is option D.
Chemical Process MCQs
Oleum produces fumes of
SO₂
H₂SO₄
SO₃
SO₂ + H₂SO₄
✅ The correct answer is option C.
Vanillin is a type of
Anti-pyretic drug
Food preservative
Flavour
Dye
✅ The correct answer is option C.
Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?
Oxidation of Na+ ions
Oxidation of Cl- ions
Reduction of Na+ ions
Reduction of Cl- ions
✅ The correct answer is option B.
Yellow phosphorus is transported under
Air
Water
Nitrogen
Helium
✅ The correct answer is option B.
Viscose rayon is
Cellulose nitrate
Regenerated cellulose nitrate
Regenerated cellulose acetate
None of these
✅ The correct answer is option D.
Starting material for the commercial production of ethyl alcohol in India is
Rice
Molasses
Fruit of Mahua tree
Maize
✅ The correct answer is option B.
Higher vicosity index of a lubricating oil denotes
Less changes in fluidity of oil with temperature
Substantially high change in fluidity of oil with temperature
Its unsuitability under varying temperature conditions
None of these
✅ The correct answer is option A.
Massecuite is
Used for paper making
Used as a cattle feed
Highly acidic in nature
None of these
✅ The correct answer is option D.
Washing of coal is done to
Remove the inherent impurities
Remove the adhering impurities
Reduce the ash content
Both B and C
✅ The correct answer is option D.