571. Hydrocynic acid (HCN) is used as an insecticide for
Controlling timber degradation by ants
Controlling poultry lice
Potato beetle
Citrus fruits
✅ The correct answer is option D.
Chemical Process MCQs
572. Silicon carbide is a/an
Adhesive
Abrasive
Type of glass
Brittle material
✅ The correct answer is option B.
573. Fourdrinier machine is used in the manufacture of
Sugar
Paper
Alcohol from molasses
Phenol formaldehyde
✅ The correct answer is option B.
574. Major component of flint glass is
Lead oxide
Silica
Alumina
Soda
✅ The correct answer is option A.
575. Oxygen is produced by fractionation of air using __________ process.
Linde’s
Claude’s
Either A or B
None of these
✅ The correct answer is option C.
576. Manufacture of phthalic anhydride uses __________ as a catalyst.
Ni
Cr
V₂O₅
Al₂O₃
✅ The correct answer is option C.
577. __________ is produced using molasses as the starting raw material.
Methyl alcohol
Ethyl alcohol
Benzol
Dimethyl ether
✅ The correct answer is option B.
578. Lurgi coal gasifier is a pressurised __________ bed reactor.
Moving
Fixed
Fluidised
Entrained
✅ The correct answer is option A.
579. Catalyst used in the hydrogenation of oil is
Nickel
Platinum
Iron
Alumina
✅ The correct answer is option A.
580. Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?
Sodium silicate
Sodium borate
Sodium tripolyphosphate (STPP)
Caustic soda
✅ The correct answer is option B.