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Chemical Engineering - Chemical Process

Exercise : Chemical Process - Section 1
36.
In sulphate pulp manufacture, the pressure and temperature in the digestor is
10 atm., 800 °C
10 atm., 170-180°C
1 atm., 170 - 180°C
l atm., 800°C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of
calcium sulphate
sodium chloride
sodium sulphate
magnesium chloride.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
Pick out the endothermic reaction out of the following.
C+O2 = CO
CO + 3H2 = CH4 + H2O
CaCO3 = CaO + CO2
CO +O2 = CO2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Pasteurisation of milk means
removal of fatty and albuminous substance from it.
killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
inhibiting the growth of micro-organisms without killing them.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
Fusion of bauxite and __________ produces high alumina cement.
alum
limestone
coke
quartz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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