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Chemical Process

Chemical Process
Portland cement consists mainly of

SiO₂ & Al2O₃
CaO & FE₂O₃
CaO & SiO₂
CaO & Al2O₃

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Chemical Process
Chrome tanning and vegetable tanning are done for

Heavy & light leather respectively
Both light & heavy leather
Neither light nor heavy leather
Light & heavy leather respectively

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Chemical Process
Production of one ton of cement requires about __________ tons of limestone.

3.8
0.6
2.2
1.2

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Chemical Process
__________ is the major constituent of the Portland cement.

Calcium sulphate
Tricalcium silicate
Calcium oxide
Calcium carbonate

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Chemical Process
__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Solvay
Ostwald's
Haber's
None of these

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Chemical Process
Mercury cells for caustic soda manufacture, compared to diaphragm cells

Produce lower concentration NaOH
None of these
Require lower initial investment
Require more power

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