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Hydrocarbons
Addition of hydrogen to ethene forms
methane
propane
butane
ethane
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Hydrocarbons
Which of the following is not true about alkanes?
they are non-polar
they are less dense than water
they are insoluble in water
they are reactive towards most ionic compounds
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Hydrocarbons
C
5
-C
15
members of alkenes are
solids
liquids
gases
plasma
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Hydrocarbons
Which of the following has carcinogenic effects at high concentrations?
tetra chloromethane
dichloromethane
methyl chloride
Trichloromethane
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Hydrocarbons
The molecular formula of ethane is
CH4
C2H6
C3H8
C4H10
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Hydrocarbons
What is the physical state of alkanes containing five to seventeen carbon atoms?
solid
liquid
gas
plasma
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Hydrocarbons
How does fluorine react?
explosively
slowly in dark but rapidly in strong sunlight
requires high temperature or strong sun light
essentially unreactive
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Hydrocarbons
How does bromine react?
explosively
slowly in dark but rapidly in strong sunlight
requires high temperature or strong sun light
essentially unreactive
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Hydrocarbons
When two carbon atoms share two electron pairs then they form
single bond
double bond
triple bond
coordinate covalent bond
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Hydrocarbons
What type of reaction do alkynes undergo across the triple bond?
elimination reaction
substitution reaction
addition reaction
halogenation
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