Andhra University 2004 B.Sc Chemistry Inorganic,Organic and Physical - Question Paper

MODEL ques. PAPER
CHEMISTRY (Common Core)

I YEAR - PAPER I
(Inorganic, Organic and Physical)

Time: three hrs
Max. Marks: 100

SECTION-A (4 x 15 = 60)
ans ALL ques.
every ques. carries 15 marks

SECTION-B (5 x four = 20)
ans any 5 ques.
every ques. carries four marks

SECTION-C (10 x two = 20)
ans all TEN ques.
every ques. carries two marks

SECTION-A
1. elaborate carbides? How are they classified? discuss their properties?

Or

Write an essay on M.O Theory? discuss the molecular structure of Oxygen.

2. explain the theory of precipitation. describe co-precipitation and post precipitation. discuss with suitable examples.

Or

define the preparation of Xenon fluorides. discuss the structure and shape of their molecules.

3. Write a note on
a. Indictive effect
b. Mesemeric effect
c. Hyper Conjugation

Or

a. elaborate cycloalkanes? Write any 3 methods of preparation.
b. discuss the substitution reaction with suitable examples.

4. a. elaborate the postulates of Kinetic Theory of Gases. elaborate its limitations
b. Derive the relation ranging from Vanderwaals Constants and Critical Constants.

Or

a. State and discuss Distribution legal regulations
b. discuss the principle and process of steam distillation.

SECTION-B
II.Write short notes on any 5 of the following:

1. elaborate the differences ranging from molecular orbital theory and valence bond theory
2. Write the structure of diborane.
3. define the preparation and properties of hydrazoic acid
4. Write a note on oxyacids and peroxy acids of sulphur.
5. State Markonikoff's Rule and discuss it with 1 example.
6. What do you understand by a functional group. What is its significance.
7. describe and discuss Solubility product
8. define the significance of Quantum numbers.

SECTION-C
III. Write very short notes of the subsequent

1. Why He2 molecule does not exist and why He+2 ion exist.
2. NH3 is strange base than PH3. Why?
3. discuss the basic nature of Iodine
4. Write any 2 uses of EDTA Titration
5. elaborate pseudo halogens? provide any 2 examples
6. elaborate free radicals? How are they formed?
7. What is Diels-Alder reaction?
8. What is inductive effect.
9. Draw the shapes of 5 d orbitals
10. State Raulis legal regulations of Ideal Solutions.

Earning:   Approval pending.