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Chemistry

Chemistry
What is the atomic number of mercury

63
32
41
80

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Chemistry
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

an addition reaction
a condensation reaction
an oxidation reaction
an elimination reaction

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Chemistry
Iron is prevented from rusting by coating with zinc. This process is called as

Corrosion
Sublimation
Reduction
Galvanisation

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Chemistry
The increasing abundance of green house gases in atmosphere has led to the following effect except

Oxygen fertilization effect
Carbon dioxide ferilization effect
Global warming
Depletion of ozone layer in the stratosphere

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Chemistry
Which of the following is used to denature ethanol ?

Propyl alcohol
Methyl alcohol
Phenol
Methane

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Chemistry
Nitrogen in water is commonly found in the form of

Nitrite
Nitrate
Nitrous oxide
Nitric oxide

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