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Chemistry

Chemistry
Oxygen has (+) oxidation number only in

OF2
H2O (2)
N2O
C12O

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Chemistry
'Atomic theory' of matter was given by

Dalton
Newton
Avogadro
Pascal

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Chemistry
Brass is a solution of molten copper in

Molten zinc
Solid zinc
Gaseous zinc
Molten tin

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Chemistry
Galvanization is the :

Deposition of zinc on iron
Deposition of tin on iron
Deposition of aluminium on iron
Deposition of copper on iron

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Chemistry
Bhopal gas tragedy is associated with leakage of

Nitrogen dioxide
Carbon dioxide
Methyl isocyanate
Sulphur dioxide

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Chemistry
The aqueous solution of potassium chloride is

A strong electrolyte
A non-electrolyte
A weak electrolyte
Initially weak and then become a strong electrolyte

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