331. Triple superphosphate is manufactured by reacting
Phosphate rock with phosphoric acid
Phosphate rock with sulphuric acid
Phosphate rock with nitric acid
Ammonium phosphate with phosphoric acid
✅ The correct answer is option A.
Chemical Process MCQs
332. Sucrose is a disaccharide consisting of
Glucose and glucose
Glucose and fructose
Glucose and galactose
Fructose and galactose
✅ The correct answer is option B.
333. High acid value of an oil or fat is an indication of
Storage under improper conditions
Absence of unsaturation
Its smaller molecular weight
None of these
✅ The correct answer is option A.
334. Which of the following is an endothermic reaction?
Absorption of SO₃ in 98% H₂SO₄
C + H₂O = CO + H₂
Thermal dissociation of iron pyrites
Both B and C
✅ The correct answer is option D.
335. ‘Hollander beater’ machine used in the paper manufacturing plant does not accomplish the task of
Final rolling out of paper
Cutting of fibres
Hydration of fibres
Fibrillation of fibre
✅ The correct answer is option A.
336. The catalyst used in shift converter is
Nickel
Vanadium
Silica gel
Alumina
✅ The correct answer is option A.
337. Which glass is usually used in optical work?
Lead glass
High silica (borosilicate) glass
Photo-sensitive glass
Fibre glass
✅ The correct answer is option C.
338. Salt is the basic raw material for the manufacture of
Cement
Glass
Potteries
Caustic soda
✅ The correct answer is option D.
339. Pick out the exothermic reaction out of the following:
C + H₂O = CO + H₂
CaC₂ + H₂O = Ca(OH)₂ + C₂H₂
MgCO₃ = MgO + CO₂
All of the above
✅ The correct answer is option B.
340. Riboflavin is a/an
Vitamin
Analgesic drug
Anaesthetics
Anti-malarial drug
✅ The correct answer is option A.