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Correct among the follownig...

Correct among the follownig

A

`BF_(3)` is a better Lewis base than `BCl_(3)`

B

`BF_(3)` does not form dimer as B-F bond is less polar.

C

Hydrides are the only species which may form 3 centre 2 `e^(-)` bond

D

All the hydrides form 3 centre i.e., bonds.

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Correct among the following is/are

    A
    Ortho hydrogen is thermodynamically more stable
    B
    Parahydrogen is kinetically more stable
    C
    At room temperature para hydrogn is major component
    D
    Ortho and para hydrogens always present in 50:50 ratio

  • Correct among the following

    A
    Cs is best oxidising agent due to lowest I.E.
    B
    `Li^(+)` is best reducing agent due to highest `|Delta_(hyd)H^(Theta)|`
    C
    `Li^(+)` is best reducing agent due to highest `Delta_(hyd)H^(Theta)`
    D
    `Cs^(+)` is best oxidising agent due to low `|Delta_(hyd)H^(Theta)|`

  • Which is (are) correct among the following ? .

    A
    The radius of `CI^(Θ)` ion is `1.56 Å` while that of `Na^(o+)` ion is `0.95Å` .
    B
    The radius of `CI` atom is `0.99` while that of Na atom is `1.54`
    C
    The radius of `CI` atom is `0.99` while that of `CI^( Θ)` ion is `0.81`
    D
    The radius of Na atom is 0.95 while that of `Na^(o+)` ion is `1.54` .