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{ Chemical Process }
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Chemical Engineering
// Chemical Process
78. Esterification reaction
A. Produces soap
B. Is reversible
C. Is a reaction between an alcohol and an organic acid
D. All of the above
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79. Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
A. Nitric acid
B. Sulphuric acid
C. Ammonium sulphate
D. Hydrochloric acid
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80. Commercial production of Vanaspati is done by __________ of edible vegetable oils.
A. Hydrogenation
B. Oxidation
C. Hydrolysis
D. Hydrocracking
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81. 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
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82. Which allotrope of sulphur is insoluble in carbon disulphide?
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Milk of sulphur
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83. Which of the following is a disacchride?
A. Sucrose
B. Glucose
C. Starch
D. Maltose
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84. Molecular weights of polymers are in the range of
A. 10 - 10
3
B. 10
2
- 10
7
C. 10
7
- 10
9
D. 10
9
- 10
11
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