Chemical Engineering Mcqs

Hard water____________________?

(A) Does not affect the lather formation by soap
(B) Is not unfit for drinking purpose
(C) Pollutes the water stream
(D) All A,

Submitted By :Ali Uppal

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_____________________?

(A) Calcium sulphate
(B) Sodium chloride
(C) Sodium sulphate
(D) Magnesium chloride

Submitted By :Ali Uppal

Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ °C ?

(A) -53
(B) -103
(C) -183
(D) -196

Submitted By :Ali Uppal

Frasch process is for______________________?

(A) Making oxygen
(B) Producing helium
(C) Mining sulphur
(D) Making nitrogen

Submitted By :Ali Uppal

The drug used in contraceptives is____________________?

(A) Sulfadiazine
(B) Mestranol
(C) Methyl salicylate
(D) Penicillin

Submitted By :Ali Uppal

Neoprene is a__________________?

(A) Monomer
(B) Synthetic rubber
(C) Polyester
(D) None of these

Submitted By :Ali Uppal

Gun powder, which is an explosive comprises of charcoal, sulphur and____________________?

(A) Glycerine
(B) Salt petre
(C) Nitro glycerine
(D) Dynamite

Submitted By :Ali Uppal

High temperature carbonisation of coal takes place at __________________ °C?

(A) 2000
(B) 700
(C) 1100
(D) < 500

Submitted By :Ali Uppal

Viscose rayon is chemically___________________?

(A) Cellulose nitrate
(B) Regenerated cellulose nitrate
(C) Cellulose acetate
(D) Regenerated cellulose acetate

Submitted By :Ali Uppal

Mercury cells for caustic soda manufacture, compared to diaphragm cells___________________?

(A) Require lower initial investment
(B) Require more power
(C) Produce lower concentration NaOH
(D) None of these

Submitted By :Ali Uppal

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