E-PolyLearning

1. All enzymes are made of
a. fats
b. carbohydrates
c. proteins
d. amino acids
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Answer: (c).proteins

2. The combustion reaction, C + O₂ = CO₂, is
a. exothermic
b. endothermic
c. autocatalytic
d. none of these
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Answer: (a).exothermic

3. Styrene is produced from ethyl benzene by the process of
a. dehydrogenation
b. oxidation
c. alkylation
d. dehydration
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Answer: (a).dehydrogenation

4. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
a. callagen
b. tannin
c. molasses
d. carbohydrate
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Answer: (a).callagen

5. 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.
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Answer: (d).none of these.

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