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Chemical Process

Chemical Process
L.D. converter is used in the production of

Pig iron
Zinc
Copper
Steel

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Chemical Process
Sizing material is incorporated in paper to

Impart resistance to penetration by liquids
Increase its flexibility & opacity
Increase its thickness
Increase its brightness

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Chemical Process
Which of the following is not responsible for causing permanent hardness of water?

None of these
MgCl₂
CaCl₂
Ca(HCO₃)₂

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Chemical Process
The main component of pyrex glass is

Zinc
Lead
Boron
Celenium

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Chemical Process
Thermosetting plastic materials

Can not be melted after forming
Is useful for spinning
Can be repeatedly melted
Is useful for melt casting

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Chemical Process
The major constituent of black liquor generated during paper manufacture is sodium

Sulphate
Hydroxide
Bi-carbonate
Carbonate

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