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Chemistry

Chemistry
Which one of the following does not contain Silver ?

Lunar Caustic
German Silver
Ruby Silver
Horn Silver

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Chemistry
Ethylene is a ________ molecule.

Nonpolar
Polar
Covalent
Ionic

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Chemistry
The metal that is usually extracted from sea water is

Mg
Na
K
Ca

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Chemistry
Hard water and soft water can be distinguished by using

Detergent
Dilute acid
Ordinary soap
Liquid soap

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Chemistry
The coloured discharge tubes for advertisement mainly contain

Argon
Helium
Neon
Xenon

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Chemistry
Stains of rust on clothes can be removed by :

H2O2
Alcohol
Oxalic acid
Petrol

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