Aliphatic hydrocarbons - Jamb Chemistry Past Questions and Answers

Question 1:

• JAMB 2019

The IUPAC names of the compounds CH3COOH and CH2=CH2 are respectively;

A. Acetic acid and ethene
B. Ethanoic acid and ethene
C. Methanoic acid and ethylene
D. Ethanol and ethene
E. Acetic acid and ethylene

Question 2:

• JAMB 2019

Which of the following is not a member of the homologous series of the paraffins (alkanes)?

A. C₃H₈
B. C₅H₁₂
C. C₇H₁₆
D. C₁₅H₃₂
E. C₂₄H₄₈

Question 3:

• JAMB 2019

The most common type of chemical reaction which alkanes undergo is

A. Substitution
B. Addition
C. Condensation
D. Polymerisation
E. Double decomposition

Question 4:

• JAMB 2019

Two gas cylinders contain ethylene (ethene) and acetylene respectively. One test which can be used to distinguish between them is by

A. Passing each gas through bromine water
B. Passing each gas through dilute potassium permanganate solution
C. Passing each gas through silver nitrate solution
D. Treating each gas catalytically with excess hydrogen gas

Question 5:

• JAMB 2019

How many alkoxyalkanes can be obtained from the molecular formula C₄H₁₀O?

A. 4
B. 2
C. 1
D. 3