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MCQs on Chemical Bonding and Molecular Structure
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MCQs on Chemical Bonding and Molecular Structure
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23 Questions

1. Stable form of C may be represented by the formula :
2. In which of the following substances will hydrogen bond be strongest?
3. The electronic configuration of the outer most shell of the most electronegative element is
4. In PO43– ion the formal charge on the oxygen atom of P–O bond is
5. The types of hybrid orbitals of nitrogen in NO2+, NO3– and NH4+ respectively are expected to be
6. Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is
7. Polarity in a molecule and hence the dipole moment depends primarily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?
8. Which of the following order of energies of molecular orbitals of N2 is correct?
9. In which of the following molecule/ion all the bonds are not equal?
10. Amongst the following elements whose electronic configurations are given below, the one having the highest ionisation enthalpy is
11. Which of the following options represents the correct bond order :
12. Which molecule/ion out of the following does not contain unpaired electrons?
13. The bond between B and C will be
14. Which of the following order of energies of molecular orbitals of N2 is correct?
15. In NO3– ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are
16. Hydrogen bonds are formed in many compounds e.g., H2O, HF, NH3. The boiling point of such compounds depends to a large extent on the strength of hydrogen bond and the number of hydrogen bonds. The correct decreasing order of the boiling points of above compounds is :
17. Which of the following statement is not correct from the view point of molecular orbital theory?
18. In which of the following molecule/ion all the bonds are not equal?
19. Which of the following angle corresponds to sp2 hybridisation?The electronic configurations of three elements, A, B and C are given below. Answer the questions 14 to 17 on the basis of these configurations.
20. Stable form of A may be represented by the formula :
21. The molecular formula of the compound formed from B and C will be
22. Stable form of C may be represented by the formula :
23. Polarity in a molecule and hence the dipole moment depends primarily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?

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