Chemical Engineering MCQs

6108 MCQs (Page 149 of 611)

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Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?

A. Bakelite
B. Teflon
C. Celluloid
D. Dacron

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Average sulphur content in Indian pyrites is about _________________ percent?

A. 15
B. 35
C. 55
D. 70

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Triple superphosphate is manufactured by reacting ____________________?

A. Phosphate rock with phosphoric acid
B. Phosphate rock with sulphuric acid
C. Phosphate rock with nitric acid
D. Ammonium phosphate with phosphoric acid

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Gun powder uses_____________________?

A. Sulphur
B. Charcoal
C. Potassium nitrate
D. All a , b, & c.

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In industrial nomenclature, alcohol means_________________?

A. Butyl alcohol
B. Propyl alcohol
C. Ethanol
D. Methyl alcohol

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During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?

A. It is very corrosive at elevated temperature
B. Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be
FurTher reduced)
C. It decomposes on further increasing the temperature

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Phenol formaldehyde resin is used as an adhesive in making__________________?

A. Laminates
B. Card boxes
C. Furniture
D. Books

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Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about ___________________?

A. 0.1 to 0.5
B. 1 to 5
C. 5 to 10
D. 15 to 25

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Phthalic anhydride is produced by the oxidation of _________________?

A. Naphthalene
B. Benzene
C. Toluene
D. Aniline

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Chemical name of Grignard reagent is__________________?

A. Sodium thiosulphate
B. Ethyl magnesium chloride
C. Sodium sulphite
D. Sodium bicarbonate

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