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Chemical Bonding and Molecular Structure

Short Answer Type

81.

Name the hybridization and orbitals involved in the shape of |Ni(CN)₄|^2-.

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82. What types of shapes are associated with sp³d and sp³d² orbitals?

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83. Which type of hybridization explains the trigonal bipyramidal shape of SF₄ ?

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84. What is the geometry of:
(i) PF₅ molecule
(ii) SF₆ molecule?

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85.
Why all P-F bonds in PF_S molecule are not of the same length?

In PF₅, three bond angles are 120° while two are 90°. Axial P-F bond length is greater than equatorial P-F bond length due to greater repulsion from the equatorial bonds.

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86.

What are the molecular shapes of:
(i) [Ni(CN)₄]^2– and
(ii) PCl₅?

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87.

Name the hybridization and the orbitals involved in the shape of SF₆ molecule ?

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88.

What type of hybridization carbon atom has in (i) diamond (ii) graphite?

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89. Write the resonance structure of H₂ molecule

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90.

Draw the lewis resonating structure of Ozone ?

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Short Answer Type

85. Why all P-F bonds in PFS molecule are not of the same length?

85.
Why all P-F bonds in PF_S molecule are not of the same length?