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Chemical Process

Chemical Process
Which of the following is not a pyrite ore?

Siderite
Galena
Gypsum
Celestite

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Chemical Process
CaO is called

Limestone
Quick lime
Slaked lime
Calcite

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Chemical Process
The major use of butadiene is

None of these
As an anti-skinning agent in paint
In the manufacture of synthetic rubber
As a plasticiser for unsaturated polyester

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Chemical Process
Deaeration of water in its treatment is necessary, as it

None of these
Minimises its corrosiveness
Minimises its turbidity
Helps in controlling its taste and odour

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Chemical Process
The purpose of tanning in leather industry is to

Make it flexible
Smoothen the leather
Impart water resistance
Stiffen the leather

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Chemical Process
Percentage of alcohol in beer may be around __________ percent.

27-32
2-8
18-23
1-4

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