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Chemical Process

Chemical Process
Magnesium and calcium __________ cause temporary hardness of water.

Phosphates
Bicarbonates
Carbonates
Sulphates

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Chemical Process
Low purity oxygen is used for

Cutting and welding of metals
L.D. steel making
Medicinal purposes
Chemical oxidation processes

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Chemical Process
Hydrogenation of edible vegetable oils

Increases their melting point
Is an exothermic reaction
All of these
Is done in presence of nickel catalyst

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Chemical Process
Graphite is a/an

Electrical insulator
Both B and C
Moderator used in nuclear reactor
Allotrope of carbon

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Chemical Process
Alcohol percentage in molasses may be around

85
10
40
70

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Chemical Process
Process conditions in fermentator used for production of penicillin is

50°C, l0 atm
25°C, 2 atm
30°C, 200 mm Hg (absolute)
90°C, 45 atm

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