Which of the following is the laboratory method for the preparation of ethene?
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a
H3C−CH2Cl→60o−80oCKOH/alcCH2=CH2+HCl
b
H2CBr−CH2Br→or Nal/AcetoneZn/CH3OH or etherCH2=CH2+ZnBr2
c
H3C−CH2OH→160o−180oCH2SO4 Conc.CH2=CH2+H2O
d
All of the above
answer is C.
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Detailed Solution
In the laboratory ethene is prepared by dehydration of ethanol. On heating ethyl alcohol with sulphuric acid at a temperature of 170 ° C temperature forms ethene.