Page 9 - 440

physical and chemical properties while sharing the general
properties of the Series.

І. Choosing the Correct Definition for a Context:

According to the last sentence of the passage the isomers:

a) don’t vary
b) stand apart a lot
c) differ a bit
d) match slightly in physical and chemical properties

II. Test Your Understanding of the Words:

“arranged” in line 16 passage 1 means:

(a) put in order (c) disordered

(b) schemed (d) designed

III. Comprehension Quiz.

What does condensate leave on distillation?

(a) some residues (c) hydrogen

(b) no leavings (d) carbon only

IV. Selecting the Main Idea:

The text deals with:

a) the problems of petroleum genesis
b) the molecular structure of petroleum
c) petroleum is a mixture of hydrocarbons
d) the matter of isomers