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Chemical Process

Chemical Process
Main constituents of portland cement are calcium aluminate and

Carbonates
Silicates
Sodium silicate
Gypsum

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Chemical Process
The ideal pulp for the manufacture of paper should have high __________ content.

Cellulose
Both A & B
Lignin
None of these

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Chemical Process
Which of the following is not produced on commercial scale from sea water?

Sodium sulphate
Potassium compounds
Bromine
Magnesium compounds

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Chemical Process
Phenol formaldehyde is produced by condensation polymerisation. It is also known as

Nylon-66
Teflon
Polyester
Bakelite

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Chemical Process
In the production of soda ash by Solvay process, the by-product is

NH₃
NH₄Cl
NaOH
CaCl₂

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Chemical Process
Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Stearic acid
Calcium & aluminium stearate
Formic acid
Xanthates

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