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Chemistry

Chemistry
Plastic is a type of

Acrylic
None of these
Polyester
Polymer

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Chemistry
In the periodic table of elements, on moving from left to right across a period, the atomic radius

Decreases
Does not follow a definite pattern
Increases
Remains unchanged

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Chemistry
The important ore of aluminium is

Bauxite
Haematite
Cryolite
Fluorspar

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Chemistry
The mineral containing both magnesium and calcium is

magnesite
calcite
dolomite
carnallite

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Chemistry
Which one of the following is used as a sowing agent in the preparation of soft drinks?

Boric acid
Phosphoric acid
Salicylic acid
Phosphorus acid

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Chemistry
Thermal electricity is generated by using which of these ?

None of these
Coal only
Coal, Natural Gas and Petroleum
Coal and Natural Gas only

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