Premium Essay

Arial

In: Business and Management

Submitted By maryumkhan
Words 492
Pages 2
Answer Briefly:
1.
(a) Define the following.

Saponification
Functional Group Isomerism

2. Explain how will you prepare following.

Carbolic Acid from Benzene
Acetaldehyde from acetylene
Acetal from formaldehyde

3. What are phenols? How are they classified? Explain why phenols are acedic in nature.

4. What are Organometallic compounds? How will you prepare the following from methyl magnesium bromide.

Vinegar
Isopropyl Alcohol
Ethane

5. Draw the structures and give the I.U.P.A.C names of the following.

Vinyl Chloride
Neo-pentae
Tert-butyl methyl ether
Picric acid

6
. What product or products are formed when the following compound is nitrated.

Bromo Benzene
Nitro Benzene

7
. What is methylated spirit? Give its composition.

8.
Partial hydrogenation of 2-Butyne forms two geometrical isomers. Write the equation and the condition necessary to obtain these isomers.
9.
–COOH and –CN groups deactivate the benzene ring. a. Which property of these groups causes this deactivation? b. Giving a suitable example compare the directive influence of –NO2 and –Cl group, when attached with benzene. (OR) Benzene is a highly unsaturated compound, but it does not give addition reaction with bromine even in the presence of Lewis acid. Name and explain the process which gives this extra stability to benzene.

Q.10
. a. In the preparation of alkyl halides from alcohols SOCl2 is the best reagent. Which solvent is required to complete the reaction? b. Why is SN2 mechanism chosen rather than SN1 in the preparation of primary alkyl halides?

Q.11 Aldehydes and small methyl ketones form addition product with NaHSO3: a. Write the equation for such reaction. b. What is the importance of this reaction?
12.
OH group is a characteristic...

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