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Hydrocarbons
After the first three members, the next eight members of alkynes are
solids
liquids
gases
plasma
Author:
rikazzz
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Hydrocarbons
Which of the following processes involves the addition of hydrogen molecule across carbon-carbon multiple-bond?
dehydration
Dehydrohalogenation
dehalogenation
hydrogenation
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rikazzz
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Hydrocarbons
First three members of alkynes are
solids
liquids
gases
plasma
Author:
rikazzz
Comment
Hydrocarbons
Which of the following is used as a simple test for the presence of unsaturation?
red colour of bromine solution
Decolourization of bromine solution
orange colour of bromine solution
none of above
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rikazzz
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Hydrocarbons
Glyoxal formed by loss of two water molecules by tetrahydroxy ethane oxidizes to
ethylene glycol
acetylene
oxalic acid
benzoic acid
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Hydrocarbons
Which of the following is not true about alkenes?
they are unsaturated hydrocarbons
they are insoluble in water
they are soluble in organic solvents such as alcohol
they are soluble in water
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rikazzz
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Hydrocarbons
Trichloromethane is also called
chlorophyll
chloroplast
chloromethane
chloroform
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Hydrocarbons
Which of the following is used as an anesthetic?
dichloromethane
tetra chloromethane
methyl chloride
chloroform
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Hydrocarbons
What is the state of dichloromethane at room temperature?
solid
liquid
gas
plasma
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Hydrocarbons
What is the color of the flame with which most alkanes burn?
orange
yellow
red
blue
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rikazzz
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