Chemical Engineering Objective Questions { Chemical Process }

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512. Kopper-Totzek coal gasifier

A. Can give ammonia synthesis gas (H₂ + N₂)

B. Is a moving bed reactor

C. Cannot use coking coal

D. Operate at very high pressure

513. The difference between saponification value and acid value is

A. Called ester value

B. Always negative

C. Constant for all fatty oils

D. None of these

514. Viscose rayon is chemically

A. Cellulose nitrate

B. Regenerated cellulose nitrate

C. Cellulose acetate

D. Regenerated cellulose acetate

515. Bakelite is

A. Same as poly tetrafluoroethylene (PTFE)

B. An inorganic polymer

C. Same as thermosetting phenol-formaldehyde

D. Not a polymer

516. Dechlorination of treated water is necessary to

A. Remove residual turbidity

B. Reduce the bacterial load on filter

C. Control taste and odour

D. Remove chlorinous taste

517. The biochemical treatment applied to sewage effluents is a process of

D. Polymerisation

518. __________ is produced using polycondensation reaction.

B. Phenol formaldehyde

C. Poly vinyl chloride

D. None of these

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