Each question carries +4 marks Time : 2 days Each wrong question carries -2 marks MM: 60 More than one answers may be correct

1. Assignment -2: Basic Course in Chemistry
Dr. Mohd Kamil Hussain
Department of Chemistry, Govt Raza PG College Rampur
Instructions:
 Each question carries +4 marks Time: 2 days
 Each wrong question carries -2 marks MM: 72
 More than one answers may be correct
Part-1 : Hybridization and molecular geometry
1. Hybridization of O atom in H3O+
is
(a) sp3
(b) sp2
(c) sp (d) sp3
d
2. Which one of the following pair is isostructural
(a) NH3 and H3O+
(b) NH4
+
and CH4 (c) NH2
-
and H2O (d) all of the above
3. Tetrahedral geometry is exhibited by
(a) PCl4
+
and NH4
+
(b) KMnO4 and K2Cr2O7 (c) both a and b (d) PCl5
4. Ammonia molecule exhibits
(a) sp3
hybridization (b) tetrahedral electron pair geometry (c) pyramidal shape
(d) all of the above
5. For pyrrole which one of the following statement is true
(a) All four C atoms and N atom are sp2
hybrid (b) All four C atoms and N atom are sp3
hybrid (c) all carbon atoms are sp2
hybrid while N is sp3
hybrid (d) All of the
above
6. For a given compound which one of the following is true
(a) All sp2
hybrid C atoms while N atom is sp2
hybrid (b) C atoms are sp2
, sp and N
atom is sp hybrid (c) All sp2
hybrid C atoms and while N is sp3
hybrid (d) all of the
above
7. For XeF5-
which one of the following statement is true
(a) 5σ bonds and 2 lone pairs are present on Xe (b) hybridization of Xe is sp3
d3
(c) Square planer shape (d) all of the above

2. 8. For I3
-
which one of the following statement is true
(c) sp3
d hybridization (b) Linear shape (c) central I has 3 lps (d) all of the above
9. SF4 exhibits
(a) sp3
d hybridization (b) sp3
d2
hybridization (c) sp3
hybridization (d) sp3
d3
hybridization
10. H2O molecule has
(a) sp3
hybridization (b) Bent shape (c) tetrahedral geometry (d) all of the above
11. ClF3 is
(a) T shaped (b) Bent (c) Tetrahedral (d) All of the above
12. XeO3 molecule has
(a) sp3
hybridization (b) Pyramidal shape (c) tetrahedral geometry (d) all of the above
13. XeO4 molecule has
(a) sp3
hybridization (b) tetrahedral shape (c) both (d) none of the above
14. CO2 molecule has
(a) sp hybridization (b) linear shape (c) zero dipole moment (d) all of the above
15. SO2 molecule has
(a) sp2
hybridization (b) linear shape (c) zero dipole moment (d) none of the above
16. SO3 molecule has
(a) sp2
hybridization (b) planer (c) zero dipole moment (d) all of the above
17. BrF5 molecule has
(a) sp3
d2
hybridization (b) square pyramidal shape (c) both (d) none of the above
18. ICl4
-
ion has
(b) sp3
d2
hybridization (b) square planer shape (c) both (d) none of the above