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Chemistry

Chemistry
Which one of the following nonmetals shows allotropy in the liquid state?

Carbon
Bromine
Sulphur
Phosphorous

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Chemistry
Peroxyacetyl nitrate is a

Plant hormone
Acidic dye
Vitamin
Secondary pollutant

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Chemistry
The wire of flash bulbs is made up of

Ag
Mg
Cu
Ba

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Chemistry
The oil used in the froth floatation process is

coconut oil
kerosene oil
pine oil
olive oil

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Chemistry
The rusting of iron is a/an

Electrochemical change
Electrical change
Physical change
None of these

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Chemistry
Which of the following is used as filler in tyre of rubber ?

Coke
Carbon black
Graphite
Coal

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