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Chemistry

Chemistry
Mercury is a :

Liquid non-metal
Solid non-metal
Solid metal
Liquid metal

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Chemistry
Lead pencil contains

Graphite
Lead sulphide
Lead
Ferrous sulphide

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Chemistry
Which one of the following metals is used to galvanise iron ?

Copper
Zinc
Lead
Mercury

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Chemistry
Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ?

Borax
Sodium chloride
Saltpetre
Hydrogen peroxide

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Chemistry
Setting of plaster of paris involves

Dehydration process
Reduction process
Oxidation process
Hydration to form other hydrates

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Chemistry
Black lung disease occurs in people working in

Electroplating industry
Coal mines
Organic solvents industry
Paint manufacturing industry

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