Gaokao Exam Chemistry: Organic Chemistry Fundamentals 3

Question 1

What is the structural difference between 1-butene and 2-butene?

Accepted Answer

The position of the double bond in the carbon chain

Answer

The number of carbon atoms

Answer

The degree of branching

Answer

The number of hydrogen atoms

Question 2

Which of the following compounds can be detected using the silver mirror reaction (Tollens' test)?

Accepted Answer

Glucose

Answer

Sucrose

Answer

Ethanol

Answer

Acetic acid

Question 3

In the saponification reaction, which reagents are used to convert a fat into soap?

Accepted Answer

NaOH solution (heated)

Answer

Dilute H₂SO₄

Answer

Na₂CO₃ solution

Answer

HCl solution

Question 4

How many structural isomers does butane (C₄H₁₀) have?

Accepted Answer

2

Answer

3

Answer

4

Answer

1

Question 5

Polyethylene is produced by the polymerization of ethylene (ethene). What type of reaction is this?

Accepted Answer

Addition polymerization

Answer

Condensation polymerization

Answer

Substitution reaction

Answer

Elimination reaction

Question 6

Which of the following is an aromatic compound?

Accepted Answer

Benzene

Answer

Cyclohexene

Answer

Cyclohexane

Answer

Hexane