Chemical Process MCQ Questions & Answers

61

Silicon carbide is a/an

A) Adhesive B) Abrasive C) Type of glass D) Brittle material

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Answer & Solution

Answer: Option B

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62

Silicone is a/an

A) Thermoplastic B) Inorganic polymer C) Monomer D) None of these

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Answer & Solution

Answer: Option B

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63

Pig iron is produced by blast furnaces in India using mostly the iron ore named

A) Hematite B) Magnetite C) Siderite D) Chalcopyrite

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Answer & Solution

Answer: Option A

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64

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ ⇋ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550°C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

A) Increasing the oxygen concentration B) Putting more quantity of V₂O₅ catalyst in the converter C) Removing some quantity of SO₃ during intermediate stage D) Maintaining low temperature & pressure in the converter

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Answer & Solution

Answer: Option C

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65

Which of the following is used as a binding material in soap to improve soap texture?

A) Rosin B) Borax C) Benzyl acetate D) Sodium carbonate

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Answer & Solution

Answer: Option B

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66

Soaps remove dirt by

A) Increasing the surface tension B) Decreasing wettability C) Supplying hydrophyllic group D) None of these

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Answer & Solution

Answer: Option D

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67

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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Answer & Solution

Answer: Option C

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68

Solvent extracted oil

A) Has low free fatty acid content B) Is odourless C) Has more of unsaturates D) None of these

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Answer & Solution

Answer: Option D

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69

Pick out the wrong statement.

A) Strongly caking coal should not be used in the Lurgi gasifier B) Acetylene gas can not be used for illumination purpose C) Water gas is called blue gas because of the color of the flame, when it is burnt D) Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

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Answer & Solution

Answer: Option B

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70

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate

A) Is prone to thermal decomposition B) Has high water solubility and is unstable C) Is soluble in ammonium chloride and potassium chloride solution D) All of the above

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Answer & Solution

Answer: Option C

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Chemical Process MCQ Questions & Answers | Chemical Engineering