Hydrocarbons
Vicinal dihalide eliminates two molecules of hydrogen halides from adjacent carbon atoms on treatment with
Zn dust
calcium hydroxide
alcoholic potassium hydroxide
calcium chloride
alcoholic potassium hydroxide
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The reaction in which one chlorine atom becomes attached with one carbon and the other one with other carbon atom is calledA. elimination reaction
B. substitution reaction
C. halogenation
D. addition reaction
How does iodine react?
A. explosively
B. slowly in dark but rapidly in strong sunlight
C. requires high temperature or strong sun light
D. essentially unreactive
What causes the red color of tomatoes?
A. lycopene
B. ethene
C. ethylene glycol
D. acetylene
Alkanes (saturated hydrocarbons) have a density
A. less than water
B. equal to water
C. more than water
D. more than mercury
Ethene, propene, and butene are
A. solids
B. liquids
C. gases
D. plasma
Tetrahydroxy ethane loses two water molecules to form
A. oxalic acid
B. Glyoxal
C. acetylene
D. ethylene glycol
What is the term used for the reaction of an alkane and a halogen?
A. substitution reaction
B. elimination reaction
C. Dehydrohalogenation
D. hydrogenation
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