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Hydrocarbons
What is the term used for the reaction of a substance with oxygen or air that causes the rapid release of heat and the appearance of a flame?
oxidation
combustion
burning
reduction
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Hydrocarbons
Which of the following is true about alkanes?
they are insoluble in water
they are more dense than water
they are essentially polar
they are reactive towards most ionic compounds
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Hydrocarbons
Alkanes that contain 5 to 17 atoms are in
solid state
liquid state
gaseous state
plasma state
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Hydrocarbons
What is the term used for the process in which there is an addition of nascent hydrogen?
hydrogenation
dehydration
reduction
oxidation
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Hydrocarbons
When methane and chlorine are reacted in direct sunlight, the reaction is
normal
explosive
faster
cheaper
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Hydrocarbons
Higher members of alkenes are
solids
liquids
gases
plasma
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Hydrocarbons
Which of the following is used in oxy-acetylene torches for welding and cutting metals?
Ethyne
ethene
ethane
methane
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Hydrocarbons
Which of the following is not true about lighter alkanes?
their combustion can be controlled
they produce large amount of heat per gram
they are expensive and rare
they are widely used as fuel
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Hydrocarbons
Acetylene is also called
Ethyne
ethene
ethane
methane
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Hydrocarbons
What is produced by the complete combustion of an alkane?
carbon dioxide and water
carbon dioxide, water and heat
carbon monoxide, carbon and water
hydrogen and carbon dioxide
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