Isomerism, Petroleum, Petrochemicals Jamb Chemistry Past Questions

Question 1

Which of the following types of alkanols undergo oxidation to produce alkanoic acids.

I. Primary alkanols

II. Secondary alkanols

III. Tertiary alkanols

jamb 2015

• A. Primary alkanols
• B. I, II and III
• C. I and II only
• D. III only
• E. I only

Question 2

The number of isomers formed by C₆H₁₄ is

jamb 2015

• A. 4
• B. 5
• C. 2
• D. 3

Question 3

A compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen. If the molar mass of the compound is 180, Find the molecular formula [H = 1, C = 12, O = 16)

jamb 2015

• A. CH₂O
• B. C₃H₆O₃
• C. C₆H₁₂O₆
• D. C₆H₁₂O₃

Question 4

If glucose is heated with concentrated tetraoxosulphate(vi)acid, it will be dehydrated to?

jamb 2015

• A. carbon
• B. carbon(iv)oxide
• C. ethane
• D. ethanol

Question 5

Which of the following classes of organic compounds undergoes rapid oxidation with bromine water?

jamb 1980

• A. alcohols
• B. alkenes
• C. carboxylic acids
• D. esters
• E. alkanes