Hydrocarbons
The molecular formula of ethane is
CH4
C2H6
C3H8
C4H10
C2H6
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Vicinal dihalide eliminates two molecules of hydrogen halides from adjacent carbon atoms on treatment withA. Zn dust
B. calcium hydroxide
C. alcoholic potassium hydroxide
D. calcium chloride
The reaction in which one chlorine atom becomes attached with one carbon and the other one with other carbon atom is called
A. 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
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