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Chemical Process

Chemical Process
Which of the following is used as a coagulant in water treatment?

Hydrogen peroxide
Ferrous sulphate
Chlorine
Chloramine

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Chemical Process
Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent.

100
90
98
80

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Chemical Process
In sulphate pulp manufacture, the pressure and temperature in the digestor is

L atm., 800°C
10 atm., 170-180°C
10 atm., 800 °C
1 atm., 170 - 180°C

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Chemical Process
Solvent extracted oil

None of these
Has more of unsaturates
Is odourless
Has low free fatty acid content

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Chemical Process
The yield of tar from high temperature carbonisation of dry coal is about __________ percent.

12
3
22
0.3

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Chemical Process
Nylon-6 is manufactured from

Hexamethylene diamine and sebacic acid
Hexamethylene diamine and adipic acid
Hexamethylene diamine and maleic anhydride
Caprolactum

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