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Chemical Process

Chemical Process
The enzyme which converts starch into the disacharides maltose is

Yeast
Maltase
Diastase
None of these

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Chemical Process
Cement mainly contains

CaO, MgO, K₂O
Al2O₃, MgO, FE₂O₃
CaO, SiO₂, Al2O₃
MgO, SiO₂, K₂O

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Chemical Process
Phenol is mainly used

To produce phenol formaldehyde
To produce benzene
As a plasticiser for unsaturated polyster
To produce polyester resin

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Chemical Process
The amount of benzene present in pure benzol is about __________ percent.

90
70
50
30

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Chemical Process
The combustion reaction, C + O₂ = CO₂, is

Exothermic
Endothermic
Autocatalytic
None of these

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Chemical Process
Which of the following paper does not require a filler during manufacture?

Coloured paper
Bond paper
Blotting paper
Writing paper

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