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the action of ultraviolet rays on oxygen
the combination of oxygen molecules
subjecting oxygen to high pressure
the action of nitrogen on oxygen in atmosphere
In Which among the given states max. iron ore is found
In which of the following activities silicon carbide is used?
In which of the following groups, are the elements written in the descending order of their respective atomic weights?
In which of the following pairs, the two substances forming the pair are chemically most dissimilar?
In which process, a nucleus spontaneously breaks down by emitting radiation ?
Inert gases are
Information about the order of reaction is obtained from its
Insulin controls the metabolism of
Iodex, a pain relief balm, has the smell of _.
Iodine can be separated from a mixture of Iodine & Potassium Chloride by