Janardan Rai Nagar Rajasthan Vidyapeeth 2006 B.Tech Chemical Engineering ORGANIC

Model Question Paper

BSBT10- BSCH10 - ORGANIC & INORGANIC CHEMISTRY

Time : 3 hrs Maximum marks : 75

 

Instruction:

1. Question paper is divided into Group A, Group B and Group C

2. Each Group is 25 Marks

3. Figure to the right in bracket indicates marks.

4. Good Handwriting is expected

5. Assume suitable data if necessary.

 

Group A (25 Marks)

 

Answer any three questions (Question 1 is compulsory)

	(5)

 

Q.1 What is Bohr-Burry rules of distribution of electrons ?

(10)

Q.2 Distinguish between Metal chelate and metal complex along with examples whenever

Necessary ?

	(10)

 

Q.3 Give the assumption of Bohrs theory of atomic structure in details ?

	(10)

 

Q.4. What is hybridization of atomic orbital. Give its rules and explain its common types

of hybridization with one example each ?

(10)

Q.5 How do d-block elements differ from S and P block elements ? Discuss their general

Characteristics ?

Group B (25 Marks)

 

(5)

Answer any three questions (Questions 6 is compulsory)

 

Q.6 Define and explain Disproportionation ?

(10)

Q.7 Explain in detail hybridization and bonding in organic compounds along with

Example ?

(10)

Q.8 Define and explain Rearrangement and Explain Beckmann Rearrangement with

Suitable example and explain its Mechanism ?

 

(10)

Q.9 An organic compound having molecular formula C₃ H₆ O, shows I-R bands at

(10)

3300, 1620& 910 cm^-1 . Explain stepwise to find out the structure of compounds ?

Q.10. An organic compound having molecular formula C₄H₆ , shows IR bands at 3300

and 2100cm^-1 . Explain stepwise to find out structural formula of the compound ?

 

 

 

 

Group C (25 Marks)

All Questions are Compulsory.

Q.11 Fill in the blanks ( each question carry 2 marks)

1. More the number of___________ in a resonating structure, more will be its stability.

2. The explanation advanced for the formation of the highly substituted alkene is that such an alkene

is that such an alkene is stabilized by _________.

3. Number of waves per unit length is called as _________

4. Olegines and carbonyl compounds when treated with a proton donating solvent forms ________

5. On the basis of d-d transitions, _______ gives satisfactory explanation for colour and absorption

spectra of transition metal complexes.

 

Q.11 Multiple choice question. (Each question carry 2 marks)

1.__________ are characterized by the change of angle two covalent bonds.

a) Stretching vibration b) Symmetrical Stretching c) Asymmetrical stretching

d) Bending vibration.

2. Non polar structures are more stable than the ________

a) Polar b) Dipolar c) Non-polar d) Hybrid

3. The element of Group II have general ground state electronic configuration ns² and are called

__________

a) Alkaline Earth Metals b) Alkaline Earth non-metal c) Non-alkaline Earth Metals

d) Non-alkaline earth non-metal.

4. An atom of an element is extremely small with a spherical shape having approx _______

a) 1 x 10^-8 cm b) 1 x 10^-18cm c) 1 x 10^-4cm d) 1 x 10^-14 cm

5. The transition metals are capable of showing several ________ states

a) Substitution b) Reduction c) Oxidation d) Rearrangement

 

Q.11 True or false (each question carry 1 marks).

 

1. In co-ordination complexes, when the complex is anionic, the name of the central metal atoms

ends in ate .

2. Polarization effects are temporary effects i.e. electrometric and inductomeric effect.

3. The average energy level is called bary centre.

4. Aufbau principle stated that the electrons first occupy the available orbitals singly with parallel

spins, before pairing in any one orbital commences.

5. In Becl₂ molecule , Be-atom is the central atom that undergoes Sp² hybridization.

 

 

 

 

 

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