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The structures to two compound (I) and (...

The structures to two compound `(I)` and `(II)` are given below.
Which statement is correct ?
`F_(2)C=C=CF_(2)(I)` and `F_(2)C=C=C=CF_(2)(II)`

A

Compound `(I)` shows dipole moment but `(II)` does not.

B

Compound `(II)` shows dipole moment but `(I)` does not.

C

Both show dipole moment.

D

Neither of them shows moment.

Text Solution

Verified by Experts

The correct Answer is:
a
a.
They are not in one plane because `C_(2)` is sp - hybridised and is linear, whereas `C_(1)` and `C_(3)` are s`p_(2)-` hybridised.
So they will show dipole moment.
But
They are in one plane and will not show dipole moment.
Rule `:` Even number of double bonds with all same four groups wil show dipole moment and odd number of double bonds with same four groups will not show dipole moment.
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Knowledge Check

  • F_(2)C= CF_(2) is a monomer of

    A
    teflon
    B
    glyptal
    C
    nylon-6
    D
    buna-S

  • Acylium cation has two resonating structures (I) and (II), " "underset(I)(R-overset(oplus)(C)=ddot(O):"") rarr underset(II)(R-C equiv overset(oplus)(O):"") Which statement is correct for (I) and (II)?

    A
    (I) is more stable than (II)
    B
    Stability of (II) is more than (I)
    C
    Both have same stability
    D
    None of these

  • The given structures (I) and (II) represent configuration of the simplest sugar glyceraldehyde . Which of the following statements is not correct for the structures ? underset((I))(H-underset(CH_(2)OH)underset(|)overset(CHO)overset(|)C-OH) " " underset((II)) (HO-underset(CH_(2)OH)underset(|)overset(CHO)overset(|)C-H)

    A
    (I) represents D-form while (II) represents L-form of glyceraldehyde .
    B
    The sugars having same configuration as D-glyceraldehyde are designated as D-sugars.
    C
    Natural glucose and fructose are D-Sugars.
    D
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