Chemical Engineering - Chemical Process

1.
The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.
800
1600
4000
8500
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Which of the following is not present in bagasse fibre ?
Cellulose
Lignin
Pentogens
None of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
Nitric acid is not used in the manufacture of
detergents
fertilisers
aqua regia
explosives.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
Naphthols are derivates of
methyl amine
naphthalene
phenol
xylene
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Fermentation is adversely affected by the
presence of air.
absence of air.
high concentration.
presence of ammonium salts.
Answer: Option
Explanation:
No answer description is available. Let's discuss.