Optimization of Chemical Processes MCQ Practice Test - Set 23 - ObjectiveBooks

Optimization of Chemical Processes MCQ Practice Test - Set 23

Practice Test: Question Set - 23

1. Rotary kiln is not involved in the production of
    (A) Cement
    (B) Lime from limestone
    (C) Slaked lime from quick lime
    (D) None of these

2. __________ is an ore concentrating metallurgical process involving a chemical change.
    (A) Electromagnetic separation
    (B) Froth floatation
    (C) Roasting
    (D) None of these

3. Fusel oil is a/an
    (A) Essential oil
    (B) Extract from medicinal herbs
    (C) Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).
    (D) None of these

4. Solvent used for extraction of oil is
    (A) Hexane
    (B) Methyl ethyl ketone
    (C) Furfural
    (D) None of these

5. Titanium dioxide is a/an __________ color pigment.
    (A) White
    (B) Black
    (C) Yellow
    (D) Blue

6. Bordeaux mixture is a/an
    (A) Fertilizer
    (B) Inorganic fungicide
    (C) Insecticide
    (D) Explosive

7. Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
    (A) 10
    (B) 25
    (C) 50
    (D) 98

8. The most stable allotropic form of phosphorous is the __________ phosphorous.
    (A) White
    (B) Black
    (C) Yellow
    (D) Red

9. Type of glass used in optical work is the __________ glass.
    (A) Soda-lime
    (B) Fibre
    (C) Lead
    (D) Borosilicate

10. Commercial production of calcium carbide requires limestone and __________ as raw materials.
    (A) Coke
    (B) Sand
    (C) Soda ash
    (D) Fuel oil

11. Esterification reaction
    (A) Produces soap
    (B) Is reversible
    (C) Is a reaction between an alcohol and an organic acid
    (D) All (a), (b) and (c)

12. Bleaching action of bleaching powder is due to its __________ properties.
    (A) Reducing
    (B) Oxidizing
    (C) Disinfecting
    (D) None of these

13. The most economical pulp for the production of newsprint would be the __________ pulp.
    (A) Ground-wood
    (B) Sulphate
    (C) Sulphite
    (D) Semi-chemical

14. Alkylbenzene sulfonate (ABS) is a
    (A) Detergent
    (B) Rubber
    (C) Pesticide
    (D) Polyester

15. Very fine suspended and colloidal impurities are removed from water by a process called
    (A) Sedimentation
    (B) Coagulation
    (C) Disinfection
    (D) Softening

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