Electronegati...

Electronegativity and Hybridisation

Trending Questions

Q. The relative Lewis acid strengths of boron trihalides are in the order:

$B B r_{3} > B C l_{3} > B F_{3}$
$B F_{3} > B C l_{3} > B B r_{3}$
$B F_{3} > B B r_{3} > B C l_{3}$
$B C l_{3} > B F_{3} > B B r_{3}$

Q. The correct order of increasing percentage s character in the hybrid orbitals in the given molecules/ions is: (assume all hybrid orbitals are equivalent)

\begin{matrix} C O_{3}^{2 -} & X e F_{4} & I_{3}^{-} & N C l_{3} & B e C l_{2} (I) & (I I) & (I I I) & (I V) & (V) \end{matrix}

II < III < IV < I < V
II < IV < III < V < I
III < II < I < V < IV
II < IV < III < I < V

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Q. How many of following have at least one bond angle less than

109^{\circ} 28^{^{'}}

C H_{4}

N H_{4}^{+}

N H_{3}

H_{2} O

F_{2} O

C l_{2} O

C l O_{2}

N F_{3}

C F_{4}

P C l_{5}

N O_{2}

S O_{4}^{2 -}

C H_{2} F_{2}

S F_{6}

B F_{4}^{-}

C F_{3} C l

H_{2} S

P H_{3}

S O F_{4}

P F_{2} C l_{3}

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Q. The hybridizations of atomic orbitals of nitrogen in

N O_{2}^{+}, N O_{3}^{-}

and

N H_{4}^{+}

respectively are

$s p, s p^{3}$ and $s p^{2}$
$s p^{2}, s p^{3}$ and $s p$
$s p, s p^{2}$ and $s p^{3}$
$s p^{2}, s p$ and $s p^{3}$

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Q. Which of the following statement(s) is/are correct?

$C l F_{3}$ , has a hybridisation of $s p^{3} d$
$S O_{3}^{2 -}$ has a hybridisation of $s p^{3}$
$S O_{2} C l_{2}$ has hybridisation of $s p^{3}$
$C l O_{2}^{-}$ has a hybridization of $s p^{3} d$

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Q. The percentage of p-character in each orbital of the central atom used for bonding in

N H_{3}

is:

25%
75%
>75%
33.3%

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Q. Which of the following statements is true regarding

P F_{2} C l_{3}

$F$ occupies the axial position in the trigonal bipyramidal geometry
$C l$ occupies the axial position in the trigonal bipyramidal geometry
There is no preference for axial and equatorial positions
None of the above

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Q. Find the number of molecules having two lone pair of electrons on central atom.

I_{3}^{-}, X e F_{2}, X e F_{4}, H_{2} O, N H_{2}^{-} H_{2} S, H_{2} S O_{4}, N F_{3}

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Q. The electronegativity of

H, X

and

O

are

2.1, 0.8

and

3.5

respectively on Pauling scale. The nature of compound

H O X

is:

Acidic
Basic
Neutral
Amphoteric

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Q. The percentage of s-character of the hybrid orbital of C involved in the bond formation of

> C = C <

is?

$25 %$
$50 %$
$33.33 %$
$100 %$

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