Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER I/II • EXAMINATION SUMMER- 2017
Subject Code: 320011 Date: 16 -06 -2017
Subject Name: Organic Chemistry
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. English version is authentic.
6. At. Wts. C 12, H O 16, Ag 108, I 127.
Q.1
Answer any seven out of ten.
14
1. What is Hydrocarbon?
2. What do you mean by boiling point.
3. Give Wurt'z synthesis.
4. Fridal craft reaction.
5. Define isomerism.
6. Define functional group.
7. What do you mean by Homologous series?
8. List the name of purification method.
9.What do you mean by Detection?
10.Which elements are detect by Lassaigne's test.
Q.2

Give Classification of organic compound.
03
OR

Define the term "unit process". write the name of different unit process.
03

Geometrical isomerism.
03
OR

Optical isomerism.
03

0.20 gm of an organic substance when heated with excess of strong nitric acid and silver nitrate Gave 0.3522 gm of silver iodide.calculate the percentage of iodine in the compound.
04
OR

Explain Lassaigne's test for the detection of Nitrogen and Hallogen in an organic Compound with equations.
04

How will you test the purity of organic compound? Describe the method
use to determine melting point of an organic compound.
04
OR

Describe kjeldahl's method for the estimation of nitrogen in an organic Compound.
04
Q.3

Describe the general methods of preparation and properties of Alkane Compound
03
OR

Explain preparation and properties of Ethanol OR Acetic acid.
03

Distinguish between Alkane, Alkene and Alkyne.
03
OR

Give difference between Saturated and Unsaturated compound.
03

Give IUPAC name of following compounds.
CH3-CH2-CH=CH2 CH3-C≡N CH3-COO-CH3 04
CH3-CH2-CH=CH2 CH3-C≡N CH3-COO-CH3
CH3-CH2-COOH
OR

Give structural formula for following.
Resorcinol Cyclo pentane 3-hexane xylene
04

Explain Dumas method to estimate Nitrogen in given organic compound.
04
OR

Explain steam distillation method to purify Aniline in detail.
04
Q.4

Explain Crystallization in detail.
03
OR

Explain Sublimation.
03

0.2600gm Organic compound gave on combustion 0.5 gm CO2 and 0.2025 gm H2O.Calculate percentage of carbon and hydrogen.
Give the structure of product obtained during the following reactions
CH3CHO NH2-NH2
KOH
CH3CH2Cl KOH ETHANOL 04
2CH3CH2Cl 2Na Ether
C2H5OH Al2O3
350.C
04
OR

Benzene to chloro Benzene.
Aniline to 4,6 trinitro aniline.
Benzene to toluene.
07
Q.5

Explain Nitration and Sulphonation unit process.
04

Write preparation and properties of Benzene.
04

Write short note on carbohydrate.
03

Write preparation and properties of Aniline.
03
















0.20 gm gm








03




30 .
I.U.P.A.C .
CH3-CH2-CH=CH2
CH3-C≡N
CH3-COO-CH3
CH3-CH2-COOH

.








gm gm co2 0.20 gm H2O
.

CH3CHO NH2-NH2
KOH
CH3CH2Cl KOH ETHANOL
2CH3CH2Cl 2Na Ether
C2H5OH Al2O3
350.C






.