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Chemical Process

Chemical Process
Which is the main reducing agent during production of iron from iron ore in a blast furnace?

C
H₂
CO₂
CO

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Chemical Process
Hydrocynic acid (HCN) is used as an insecticide for

Citrus fruits
Controlling poultry lice
Potato beetle
Controlling timber degradation by ants

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Chemical Process
The difference between saponification value and acid value is

None of these
Always negative
Called ester value
Constant for all fatty oils

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Chemical Process
Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

Oxidation of Na+ ions
Reduction of Cl- ions
Reduction of Na+ ions
Oxidation of Cl- ions

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Chemical Process
Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

All of these
Easy poisoning tendency
Fragile nature
High cost

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Chemical Process
Fusion of bauxite and __________ produces high alumina cement.

Limestone
Alum
Quartz
Coke

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