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Dimer acetic acid in benzene is in equil...

Dimer acetic acid in benzene is in equilibrium with acetic acid at a particular condition of temperature and pressure. If half of the dimer molecules are hypothetically separated out then

A

Superimposable on their mirro image

B

Not superimposable on their mirro image

C

unstable molecules

D

capable of showing geometrical isomerism

Text Solution

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The correct Answer is:
B
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Dimer of acetic acid in liquid benzene is in equilibrium with acetic acid monomer at certain temperature and pressure. If 25% of the dimer molecules are separated out then (a)freezing point of the solution reduces (b)average molar mass of solute increases (c)boiling point of solution increases (d)molar mass of solute decreases

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Knowledge Check

  • Acetic acid exists as dimer in benzene due to

    A
    a condensation reaction
    B
    hydrogen bonding.
    C
    presence of carbonyl group
    D
    presence of hydrogen atom at `alpha`-carbon atom.

  • Acetic acid exists as dimer in benzene due to

    A
    a condensation reaction
    B
    hydrogen bonding.
    C
    presence of carbonyl group
    D
    presence of hydrogen atom at `alpha`-carbon atom.

  • Acetic acid exists as dimer in benzene due to

    A
    a condensation reaction
    B
    hydrogen bonding.
    C
    presence of carbonyl group
    D
    presence of hydrogen atom at `alpha`-carbon atom.

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