1. The molecule, which contains sp3d2 and p orbitals overlapping in it is

2. Homolytic fission of C-C bond of ethane (C2H6) which gives an intermediate in which carbon atom is

3. Which of the following compounds has the electron pair geometry as trigonal bipyramidal with three equatorial positions occupied by lone pairs of electrons?

5. In BrF3 molecule the lone pairs occupy an equatorial position to minimise

6. The hybridisation of phosphorous in POCl3 is the same as in

7. If the bond length and dipole moment of diatomic molecules are 1.25Ao and 1.0D respectively, what is the percent ionic character of the bond?

8. The molecule MLx is planar with six pairs of electrons around M in the valence shell. The value of x is

9. Total number of electron pairs in PCl5, PCl4+ and PCl6– are respectively

10. If the water molecule is linear

1. When two species A and B form an electron-pair bond and A does not provide its electrons for bonding, the bond present between A and B must be

2. Each of the following pairs of chemical species will combine. Which of the following combinations is best explained by the coordinate covalent bond?

3. BF3 forms an adduct with NH3 because

4. Protons play an important role in which type of bonding?

5. Which of the following compounds contain all three types: ionic, covalent and dative bonds?

6. The type of bond formed during the hydration of cation is

7. Which of the following compounds has electrovalent linkage?

8. Which of the following bonds has the most polar character?

9. A molecule with multiple covalent bonds is

10. The weakest bond is