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Chemical Process

Chemical Process
Bleaching action of bleaching powder is due to its __________ properties.

Disinfecting
None of these
Reducing
Oxidising

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Chemical Process
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

None of these
Electrolytic oxidation
Electrolytic reduction
Electrolysis

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Chemical Process
Catalyst used in the oxidation of benzene to produce maleic anhydride is

Cr
Ni
V₂O₅
Pt

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Chemical Process
Low temperature carbonisation of coal takes place at __________ °C.

1100
700
900
300

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Chemical Process
Bleaching of paper pulp is done with

Magnesium sulphite
Activated clay
Chlorine or chlorine dioxide
Bromine

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Chemical Process
Systemic insecticides

Are stomach poisons
Emit poisonous vapour
Are absorbed throughout the plant
Kill insects following external bodily contact

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