Chemical Engineering - Chemical Process

21.
Pure rectified spirit contains about __________ percent alcohol.
45
70
95
99.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.
-83
-183
-196
-218
Answer: Option
Explanation:
No answer description is available. Let's discuss.

23.
Titanium dioxide is a/an __________ colour pigment.
white
black
yellow
blue
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
Mercury cells for caustic soda manufacture, compared to diaphragm cells
require lower initial investment.
require more power.
produce lower concentration NaOH.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
Cellulose percentage in bamboo fibre is about
10
20
50
85
Answer: Option
Explanation:
No answer description is available. Let's discuss.