D) compounds, having identical molecular weight

C) compounds, having identical on composition, but different on chemical structure and properties

D) compounds, having identical molecular weight

D) Compounds of oxygen.

B) Compounds of hydroxyl

Hand-outs 1

Exercises

1. Draw the structure formula of each of these hydrocarbons and write their isomers:

Heptane, toluene, 2-pentene, benzene, ksylene.

2. Write the isomers for next compounds:

three nitrobenzene, three methyl benzene, dimethyl benzene, methyl, ethyl

benzene.

3. Define the following terms:

hydrocarbon, alkane. Alkene, alkadiene, alkyne, aromatic hydrocarbon.

4. Summarize the solubility behavior of hydrocarbons in water and in nonpolar organic solvents.

5. Write the equations for the reaction of methane with bromine

a. in the presence of sunlight, and

b. in the absence of sunlight.

6. write the equation for the reaction of ethane with bromine

a. in the presence of sunlight, and

b. in the absence of sunlight.

7. Why was Br₂ dissolved in cyclohexane and not in water?

8.Which hydrocarbon reacted immediately with the bromine solution?

Write the equation for the reaction.

9. Complete the equation showing the substitution of one bromine atom for

hydrogen on the end carbon of hexane. The reaction is catalyzed with uv

light.

uv

CH₃CH₂CH₂CH₂CH₂CH₃ + Br₂ →

10. What gas is produced in the reaction between calcium carbide and water?

Write the balanced the equation for the reaction.

Elements of organic chemistry

KATU Technical Faculty

Instructor: Alimkulova E. J.

Plase, repeat from the organic Chemistry –I base functional hydrocarbons.

Write a common formule of:

- alkanes_________________

- alkynes_________________

- alkenes_________________

- alkines_________________

1. What study the organic chemistry:

a) Compounds of carboxyl;

c) Compounds of nitrogen;

2. Isomers – it’s

a) compounds having identical on composition, but different on chemical structure and properties

b) macromolecules, consisting from more link;

c) compounds having identical on chemical structure and properties, but different on composition on some CH₂

3. Homologous – it’s

a) compounds, having identical on chemical structure and properties, but different on composition on some CH_2;

b) macromolecules, consisting from more link;

4. The general formula of alkanes is:

a) C_nH_2n+2;

b) C_nH_{2n -1};

c) C_nH_{2n -2};

d) C_nH_2n+1.

5. The general formula of alkyles is:

a) C_nH_2n+1;

b) C_nH_{2n -1};

c) C_nH_{2n -2};

d) C_nH_2n+2.

6. The general formula of alkenes is:

a) C_nH_2n;

b) C_nH_{2n -1};

c) C_nH_{2n -2};

d) C_nH_2n+2.

7. The general formula of diene-hydrocarbons (alkadienes) is:

a) C_nH_{2n -2};

b) C_nH_{2n -1};

c) C_nH_2n+1;

d) C_nH_2n+2.

8. The general formula of alkines is:

a) C_nH_{2n -2};

b) C_nH_{2n -1};

c) C_nH_2n;

d) C_nH_2n+2.

9. The molecules of saturate hydrocarbons of normal construction has chain of carbon atoms:

a) zigzagging with angle between bonds 109⁰28`;

b) linear constitution;

c) zigzagging with angle between bonds 90⁰;

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