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Standard XII
Chemistry
Question

Which of the following compounds will exhibit geometrical isomerism?
  1. 1-phenyl-2-butene
  2. 3-phenyl-1-butene
  3. 2-phenyl-1-butene
  4. 1,1-diphenyl-1-propane

A
1-phenyl-2-butene
B
2-phenyl-1-butene
C
3-phenyl-1-butene
D
1,1-diphenyl-1-propane
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Solution
Verified by Toppr

1-phenyl-2-butene shows geometrical isomerism in the form of cis and trans isomers.
However, the geometrical isomerism is not possible for 3-phenyl-1-butene, 2-phenyl-1-butene and 1,1-diphenyl-1-propane.

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Q1
There are some compounds which are as follow:
1-phenyl-1-butene, 1-phenyl-2-butene, 2-phenyl-1-butene
Which of the following is the correct order for increasing order of reactivity for acid catalyzed hydration?
1) 1-phenyl-1-butene < 1-phenyl-2-butene < 2-phenyl-1-butene
2) 1-phenyl-2-butene < 1-phenyl-1-butene < 2-phenyl-1-butene
3) 2-phenyl-1-butene < 1-phenyl-2-butene < 1-phenyl-1-butene
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Q2
Assertion :Butene and propane exhibit position isomerism. Reason: Alkenes can exhibit position isomerism.
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Q3
Which among the following compounds show geometrical isomerism?
I) 1 - butene
II) 2 - butene
III) 2 - methyl - 2 - butene
IV) 2 - pentene
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Q4
1-Butene and 2-Butene exhibits _____________ isomerism.
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Q5
Convert: (i) 3-phenyl-1-propanol to 3-phenyl-1-propanal.
(ii) isopropyl alcohol to acetone.
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