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1. C-O bond length is minimum in?
2. Molecules are held together in a crystal by?
(A) Hydrogen bond
(B) Electrostatic attraction
(C) Van der Wall’s attraction
(D) dipole-dipole attraction
3. Sp3d2 hybridization is present in [Co(NH3)63+], find its geometry?
(A) Octahedral geometry
(B) Square planar geometry
(C) Tetragonal geometry
(D) Tetrahedral geometry
4. Find the molecules with the maximum dipole moment?
5. MC6 is a molecule with octahedral geometry. How many M – X bonds are at 180o?
6. Find the pair with sp2 hybridization of the central molecule?
(A) NH3 and NO2–
(B) BF3 and NH2–
(C) BF3 and NO2–
(D) NO2– and H2
7. The formal charge and P – O bond order in PO43- respectively are?
(A) 0.6, -0.75
(B) -0.75, 1.25
(C) 1.0, -0.75
(D) 1.25, -3
8. Which of the molecules does not have a permanent dipole moment?
9. pℼ – dℼ bonding is present in which molecule?
10. Which one has a pyramidal shape?