Chemical Technology Basics Mcqs

This set of Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Chemical Technology ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Chemical Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Chemical Technology comprehensively.

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1.
The form of sulphur which is the most stable at ordinary temperature is

Monoclinic

Plastic

Rhombic

Flowers of sulphur

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2.
The allotrope of sulphur which is insoluble in carbon disulphide is

Monoclinic suphur

Rhombic sulphur

Milk of sulphur

Plastic sulphur

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3.
Oleum is

A misture of conc. H2SO4 and oil

Sulphuric acid which gives fumes of sulphur dioxide

Sulphuric acid saturated with sulphur trioxide

A mixture of sulphuric and nitric acid.

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6.
Which of the following has maximum specific gravity at 18?C?

98.5% H2SO4

20% oleum

40% oleum

65% eloum

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7.
H2S from petroleum refinery streams is recovered by scrubbing with

Ethanol

Ethabol amines

Water

98.5% H2SO4

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8.
Sulphur is produced by oxidation-reduction of H2S. The catalyst used in this process is

V2O5

AI2O3

Pt

Ni

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9.
When sulphur dioxide is passed through a golution of hydrogen sulphide in water

Sulphuric acid is formed in solution

Sulphurous acid is formed in solution

Sulphur is precipitated

No change is observed

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10.
Sulphuric acid produced by contact process is

Cheaper

Pure and concentrated

Of poor quality

Very dilute

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11.
Select the wrong statement. Compared to platinum catalyst vanadium pentoxide catalyst used in contact process for the manufacture of H2SO4

Is relatively immune to poisons

Requires low initial investment and 5% replacement per year

Requires low O2/SO2 to give economic conversion

Requires dilute SO2 input (7-10%)

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12.
The catalyst used in the manufacture of sulphuric acid by contact process is

Iron

Aluminium oxid

Nickel

Vanadium pentoxide

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13.
In the manufacture of sulphuric acid by contact process platinum catalyst was previously used but suffers from

Easy poisoning

Fragility

High initial investment

All of these answers

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15.
The most favourable conditions of temperature and pressure for the oxidation of sulphur dioxide to sulphur trioxide are

Low temperature high pressure

Low temperature low pressure

High temperature high pressure

High temperature low pressure

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