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3.3.2 Alkanes

Authored by Stanton Wertjes

Chemistry

10th Grade - University

Used 9+ times

3.3.2 Alkanes
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16 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is correct about the fractional distillation of crude oil?

A zeolite catalyst is used.

Each fraction contains a mixture of hydrocarbons.

Gaseous fractions are formed by breaking covalent bonds.

The fractionating column is hottest at the top.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The table shows possible conditions and products for the cracking of alkanes. Which row is correct?

A

B

C

D

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which catalyst is used in the catalytic cracking of alkanes?

Concentrated phosphoric acid

Iron

Nickel

Zeolite

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tetradecane (C14H30) is an alkane found in crude oil. When tetradecane is heated to a high temperature, one molecule of tetradecane decomposes to form one molecule of hexane and three more molecules.


Which of the following could represent this reaction?

C14H30 C6H14 + C4H8 + 2C2H4

C14H30 C6H14 + C6H12 + C2H4

C14H30 C5H12 + 3C3H6

C14H30 C6H14 + C2H6 + 2C3H6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which correctly represents an incomplete combustion of pentane?

C5H12 + 8O2 ⟶ 5CO2 + 6H2O

C5H12 + 8O2 ⟶ 4CO + CO2 + 6H2O

C5H12 + 6O2 ⟶ 4CO + CO2 + 6H2O

C5H12 + 5O2 ⟶ 4CO + CO2 + 4H2O + 2H2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these substances does not contribute to the greenhouse effect?

Unburned hydrocarbons.

Carbon dioxide.

Water vapour.

Nitrogen.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sulfur dioxide (SO2) is produced when some fossil fuels are burned.


Which of the following statements is true?

Sulfur dioxide can be removed from waste gases in a power station by an acid-base reaction with calcium oxide

Sulfur dioxide is insoluble in water.

Sulfur dioxide is a basic oxide.

Sulfur dioxide is an ionic compound.

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