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Chemistry

Chemistry
By-product obtained by soap industry is

Glycerol
Caustic potash
Naphthalene
Caustic soda

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Citric acid
Carbonic acid
Lactic acid
Acetic acid

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

NO2
SO2
SO3
N2O

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Chemistry
The metals commonly used for electroplating are

Chromium, Copper and Nickel
Nickel, Lead and Chromium
Gold, Sodium and Chromium
Gold, Sodium and Potassium

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Chemistry
The luster of a metal is due to

presence of free electrons
its high polishing
its high density
its chemical inertness

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Chemistry
Iron rusts quickly in

River water
Distilled water
Rain water
Sea water

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MORE MCQ ON Chemistry

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