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Chemistry

Chemistry
The noble gas used in radiotherapy is

Radon
Argon
Xenon
Neon

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Chemistry
Plastic is a type of

Polyester
Acrylic
None of these
Polymer

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Chemistry
Oxide of sulphur present in the atmosphere are washed down by rains to cause :

Lowering of pH of soil
Industrial smog formation
Depletion of fossil fuel reserves
Eutrophication in lakes

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Chemistry
Which one of the following elements is used in the manufacture of fertilizers ?

Potassium
Fluorine
Lead
Aluminium

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Chemistry
Iodine can be separated from a mixture of Iodine and Potassium Chloride by

Filtration
Distillation
Sublimation
Sedimentation

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Chemistry
Milk is

Gel
Suspension
Emulsion
Foam

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