Websites for practice sets - Organic Chemistry

http://www.jce.divched.org/JCEDLib/QBank/collection/ConcepTests/topicsorg.html

http://pages.towson.edu/ladon/orgrxs/reactsum.htm

http://www.chemistry.ohio-state.edu/organic/flashcards/

IIT JEE 2008 Sample MCQs

1. Borax is :
(a) Sodium metaborate
(b) Sodium orthoborate
(c) Sodium tetraborate
(d) Sodium tetraborate decahydrate


2. The two compounds sulphato penta-ammine cobalt(III) bromide and sulphato penta-ammine cobalt(III) chloride are examples for:
(a) Linkage isomerism
(b) Ionisation isomerism
(c) Co-ordination isomerism
(d) No isomerism.

3. An alkene in reaction with hot acidified KMnO4 gives succinic acid. The alkene is
(a) 1-butene
(b) 2-butene
(c) 2-methylbutene
(d) cyclobutene

Application Questions Ch. 2 Gaseous, Liquid, and Solid States

1. to which of the following is Dalton's law of partial pressures not applicable?

a) H2 and He
b) NH3 and HCL
c) N2 and H2
d) N2 and O2

2. In silica (SiO2) each silicon atom is bonded to

a) two oxygen atoms
b) four oxygen atoms
c) one silicon and four oxygen atoms
d) octahedrally to six oxygen atoms

Application Questions Ch. 3 Atomic Structure

1. The quantum numbers of last electron in an atom are 4,0,0,1/2. the atomic number of the element would be:

a) 21
b) 20
c) 19,20,29,30
d) 19,20

Application Questions Ch. 4 Periodic Table

1. Which of the following pairs of elements have almost similar atomic radii?

a) Zr, Hf
b) Mo, W
c) Co, Ni
d) all of these

Application Questions Ch. 5 Bonding

Understand the following statements

1. CuSO4 has ionic, covalent and coordinate bonds
2. SO2 involves sp2 hybridization
3. HgCl2 and C2H2 are linear molecules
4. CH3+ has sp2 hybridization
5. SO2, NO2 and ClO2 are not linear while CO2 is linear.
6. NCO- has linear structure.
7. In ClO2- chlorine atom has sp3 hybridization
8. In OF2 oxygen atom will have sp3 hybridization.
9. N2O4 has covalent and coordinate bonds
10. Molecular oxygen has unpaired electrons.
11. NO3- has sp2 hybridization.
12. NO2+ has sp hybridization


MCQs

1. Which of the of following do not exhibit both ionic and covalent bond.
a) BaSo4
b) NH4Cl
c) Ca(NO3)2
d) HCl

2. Which of the following has maximum covalent character?
a) LiI
b) LiF
c) LiCl
d) LiBr

Application Questions Ch. 6 Energetics

1. If 10.0 g of a radioactive isotope has a half life of 10 hours, the half life of 4.0 g of the same substance is

a) 2.5 hrs
b) 5 hrs
c) 10 hrs
d) 40 hrs