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In carbonate ion, all three carbon - oxygen bonds are equivalent in all respects, viz, length, energy. What is the average bond order of carbon-oxygen?

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Important Questions on Chemical Bonding and Molecular Structure

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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters
Among the following molecules, the one with the largest bond angle at the central atom is
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The compound(s) with two lone pairs of electrons on the central atom is (are)
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The numbers of lone pair and bond pairs in hydrazine are, respectively:
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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters
Total number of lone pair of electrons in I3- ion is:
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Which statement is true? 
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Which of the following compounds contain(s) no covalent bond(s)?

KCl, PH3, O2, B2H6, H2SO4
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Maximum bond angle at nitrogen is present in which of the following?
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Arrange the following compounds in increasing order of C-OH bond length: methanol, phenol, p -ethoxyphenol
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The above compound represents hydrogen azide, the bond orders of bonds I and II are:

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Enthalpy of hydrogenation of one mole of benzene to cyclohexane is
[Resonance energy of benzene =-150.4 kJ/mole.
Enthalpy of hydrogenation of cyclohexene =-119.5 kJ/mole]
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What do you understand by a lone pair of electrons?
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The molecule/molecules that has/have delocalised lone pair(s) of electrons is/are

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Give a reason for the following:

Ionic compounds have a high melting point.

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The lattice energies of NaCl, NaF, KCl and RbCl follow the order
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In ozone molecule, the formal charge on the central oxygen atom is
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Which of the following pair contains 2 lone pair of electrons on the central atom?
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Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Bond Parameters
The number of π -bonds and σ -bonds present in naphthalene are respectively
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Resonance in carbonate ion CO32- is

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Which of the following is true?

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Which of the following compounds does not exhibit resonance ?
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The compound having longest C-Cl bond is: