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Chemical Process

Chemical Process
In the manufacture of viscose rayon, the raw material used industrially is

Fine teak wood
Recalyptious wood
Bagasse
Bamboo

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Chemical Process
High purity nitrogen is used in

Both A & B
Neither A nor B
Making protective gas (95% N₂ + 5% H₂) for annealing of cold rolled steel strip coils
Fire fighting purposes

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Chemical Process
Hydrogenation of edible vegetable oils

Is done in presence of nickel catalyst
Increases their melting point
All of these
Is an exothermic reaction

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

Activated carbon
Calcium sulphate
Chlorine
Ferric sulphate

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Chemical Process
Electrodeposition of metals i.e. electroplating is never done on

Metals
Refractories
Alloys
Non-metals

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Chemical Process
Sodium chloride content in sea water is about __________ gms/litre.

2
50
25
10

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