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:
|
| 2. |
Phosphoric acid is prepared from |
| A. |
cryolite | | B. |
chalcopyrite | | C. |
rock phosphate | | D. |
none of these |
Answer: Option C
Explanation:
|
| 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:
|
| 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:
|
| 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:
|
