Chemical Process Control Objective Questions Answers - Set 15 - ObjectiveBooks

Chemical Process Control Objective Questions Answers - Set 15

Practice Test: Question Set - 15

1. The purpose of tanning in leather industry is to
    (A) Stiffen the leather
    (B) Smoothen the leather
    (C) Make it flexible
    (D) Impart water resistance

2. Sand and __________ is fused at 1300°C, to produce sodium silicate.
    (A) Limestone
    (B) Soda ash
    (C) Coke
    (D) Sodium sulphate

3. Glycerine is a by-product of the __________ industry.
    (A) Soap
    (B) Detergent
    (C) Oil hydrogenation
    (D) Paint

4. The chamber process is
    (A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums
    (B) Non-catalytic and operates only on pyrites
    (C) A batch process for directly producing high strength (98 to 100%) H2SO4
    (D) None of these

5. Refractory bricks having high thermal conductivity is desirable, when it is to be used in the
    (A) L.D. converter
    (B) Blast furnace
    (C) Rotary kiln
    (D) Recuperator

6. Hydrophilic group of a soap or detergent solution is
    (A) Water hating
    (B) Soil loving
    (C) Water loving
    (D) None of these

7. Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on
    (A) Slaked lime
    (B) Soda lime
    (C) Calcium perchlorate
    (D) None of these

8. Haemoglobin is a/an
    (A) Amino acid
    (B) Biological catalyst
    (C) Protein
    (D) Enzyme

9. The amount of benzene present in pure Benzol is about __________ percent.
    (A) 30
    (B) 50
    (C) 70
    (D) 90

10. Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.
    (A) -83
    (B) -183
    (C) -196
    (D) -218

11. Pick out the wrong statement.
    (A) Cold rubber (SBR) is superior as compared to hot rubber (SBR)
    (B) Polymerization temperature can modify the properties of SBR
    (C) Production of cold SBR employs lower pressure as compared to that of hot SBR
    (D) None of these

12. Esterification reaction produces
    (A) Detergent
    (B) Vanaspati
    (C) Soap
    (D) Mercaptans

13. Enamels
    (A) Give good glossy finish
    (B) Are same as varnish
    (C) Are prepared from non-drying oil
    (D) Do not contain pigment

14. Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?
    (A) Oxidation of Na+ ions
    (B) Oxidation of Cl- ions
    (C) Reduction of Na+ ions
    (D) Reduction of Cl- ions

15. Permanent hardness of water can be removed by
    (A) Addition of soda ash to it
    (B) Treating it with zeolites
    (C) Passing it through sodium hexametaphosphate
    (D) All (a), (b), and (c)

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