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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 13
6.
In an integrated steel plant, NH3 present in coke oven gas is normally recovered as
(NH4)2SO4
NH4Cl
(NH4)2 NO3
liquid NH3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Flexible foam (for mattresses) is usually made of
PVC
silicone
polyurethanes
polyamides
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Glycerine is a by-product of the __________ industry.
soap
detergent
oil hydrogenation
paint
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to
adjust the pH of the syrup.
remove the coloring matter from the syrup.
reduce the viscosity of the syrup.
improve the rate of crystallisation of sugar.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Permanent hardness of water can be removed by
addition of soda ash to it.
treating it with zeolites.
passing it through sodium hexametaphosphate.
all (a), (b), and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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