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Find the number of molecules or ions in which d orbitals is/are not used in hybridisation

PCl6-, PCl4+, IF4,- IF5, XeO3F2, ICl2+, SF2, SF6, ASF4+, SiF4

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Important Questions on Chemical Bonding

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The percentage of s-character in the hybrid orbitals of nitrogen in NO2+, NO3- and NH4+ respectively are:
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The number of sp2 hybrid orbitals in a molecule of benzene is:
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In CO2 molecule, the hybridizations of carbon and oxygen atoms are respectively
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Identify the correct set of molecules with different geometries and central atoms with different hybridisations.
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Which of the following conversions involves change in both shape and hybridisation?
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X and Y are two covalent molecules in which the hybridization of the central atoms is the same, but the shapes are different. What are X and Y?
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The reaction in which the hybridisation of the underlined atom is affected is
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The state of hybrid orbitals of carbon in CO2, CH4 and CO32- respectively is
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Which of the following pairs of compounds is isoelectronic and isostructural?
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The order of electronegativity of carbon in sp, sp2 and sp3 hybridized states follows
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The H-N-H angle in ammonia is 107.6°, while the H-P-H angle in phosphine is 93.5°.Relative to phosphine, the p -character of the lone-pair on ammonia is expected to be
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The incorrect geometry is represented by:
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The hybridisations of N,C and O shown in the following compound

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respectively, are
 

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Among the aliphatic hydrocarbons C2H6,C2H4,CH4 and C2H2 the pair having hybrid orbitals to unhybridised orbitals ratio 1: 1 is
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What type of hybridisation takes place in the N atom of NH3 ?
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The correct order of hybridization used by nitrogen in NO2+,NO3- and NH4+ is
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In the following molecules,

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Hybridisation of carbon a,b and c respectively are :

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The bond angle H-X-H is the greatest in the compound :
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The hybridisation of atomic orbitals of nitrogen in NO2+, NO3- and NH4+ , respectively are:
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Consider the molecules CH4, NH3 and H2O . Which of the given statements is false?