Chemical Engineering - Chemical Process
Exercise :: Chemical Process - Section 3
1. |
DDT stands for |
A. |
diethyl-diphenyl-trichloromethane. | B. |
dichloro-diphenyl-trichloromethane. | C. |
diphenyl-dichloro-trichloromethane. | D. |
dichloro-diphenyl-trichloroethane. |
Answer: Option D
Explanation:
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2. |
Phosphoric acid is prepared from |
A. |
cryolite | B. |
chalcopyrite | C. |
rock phosphate | D. |
none of these |
Answer: Option C
Explanation:
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3. |
Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used |
A. |
as a lubricant. | B. |
as a rust preventive. | C. |
in hard water for cleaning of cloth. | D. |
as a foam depressant in distillation column. |
Answer: Option A
Explanation:
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4. |
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda ? |
A. |
Diaphragm electrolytic cell process | B. |
Mercury electrolytic cell process | C. |
Lime-soda process | D. |
None of these |
Answer: Option C
Explanation:
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5. |
Bleaching action of bleaching powder is due to its __________ properties. |
A. |
reducing | B. |
oxidising | C. |
disinfecting | D. |
none of these |
Answer: Option B
Explanation:
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