Carbon
Charcoal
Sulphur
Potassium nitrate
✅ The correct answer is option A.
Chemical Process MCQs
Use of hydrated lime in water treatment
Before filtration, reduces the bacterial load on filters
After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂
Is to adjust the pH value
All of the above
✅ The correct answer is option D.
Which of the following is the second major component of cement?
Al₂O₃
SiO₂
CaO
Fe₂O₃
✅ The correct answer is option B.
Synthesis gas is a mixture of
CO and H₂
N₂ and H₂
H₂, CH₄ and CO
CO₂ and H₂
✅ The correct answer is option A.
Esterification reaction produces
Detergent
Vanaspati
Soap
Mercaptans
✅ The correct answer is option C.
Cellulose percentage in bamboo fibre is about
10
20
50
85
✅ The correct answer is option C.
Prussian blue is chemically represented by
FeO.TiO₂
Ca SO₄ . 2H₂O
Fe₄ [Fe (CN₆)₃]
AlF₃ . 3NaF
✅ The correct answer is option C.
Most commonly used rubber vulcanising agent is
Sulphur
Bromine
Platinum
Alumina
✅ The correct answer is option A.
Iron ore hametite is concentrated using
Electro magnetic separation mainly
Gravity separation
Froth floatation
Roasting
✅ The correct answer is option B.
Which is the most suitable dye for synthetic fibres?
Acid dye
Azoic dye
Pigment dye
Mordant dye
✅ The correct answer is option A.