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For 1-methoxy-1, 3-butadiene, which of t...

For 1-methoxy-1, 3-butadiene, which of the following resonating structure is least stable?

A

`H_(2)overset(Ө)C - overset(o+)CH - CH = CH - O - CH_(3)`

B

`H_(2)overset(Ө)C -CH = CH - CH = overset(o+)O - CH_(3)`

C

`H_(2)C = CH = overset(o+)CH - overset(Ө)CH - O - CH_(3)`

D

`H_(2)C = CH - overset(Ө)CH - CH = overset(o+)O - CH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Which of the following resonating structure is most stable ?

    A
    `CH_(3) -underset(..)(ddotO)-CH=CH-overset(o+)(C)H_(2)`
    B
    `CH_(3) -underset(..)(ddotO)-overset(o+)(C)H_(2)-CH=CH_(2)`
    C
    `CH_(3) -underset(..)(ddotO)-overset(o+)(C)H_(2)-overset(Theta)(C)H-overset(o+)(C)H_(2)`
    D
    `CH_(3)-overset(o+)underset(..)(O)=CH-CH=CH_(2)`

  • For 1 - methoxy- 1,3- butadience ,which of the following resonating structure is the least stable ?

    A
    `H_(2)overset(+) (C )-overset(+)CH-Ch=CH-O-CH_(3)`
    B
    `H_(2)overset(+)(C) -CH =CH-CH=overset(+)O -CH_(3)`
    C
    `H_(2)overset(+)C-CH-overset(+)CH-overset(+)CH-O-CH_(3)`
    D
    `H_(2)C=CH-overset(+)CH-CH=overset(+)(O)-CH_(3)`

  • 1, 3-butadiene has

    A
    sp and `sp^2` hybridized C-atoms
    B
    sp, `sp^2` and `sp^3` hybridized C-atoms
    C
    Only `sp^2` hybridized C-atoms
    D
    Only sp hybridized C-atoms

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