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Chemistry

Chemistry
Brass is a solution of molten copper in

Molten zinc
Gaseous zinc
Molten tin
Solid zinc

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Chemistry
Iron rusts quickly in

Sea water
River water
Rain water
Distilled water

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Chemistry
Benzene cannot undergo :

Oxidation
Addition
Substitution
Elimination

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Chemistry
What is 'milk of magnesia' chemically?

Sodium bicarbonate
Magnesium carbonate
Calcium hydroxide
Magnesium hydroxide

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Chemistry
Copper is refined by

Electrolysis
Oxidation
Roasting
Zone refining

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Chemistry
When a lead storage battery is discharged,

SO2 is evolved
Lead is formed
Sulphuric acid is consumed
Lead sulphate is consumed

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