Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 266:

• JAMB 2009

The molecular formula of a common organic laboratory anaesthetic is

A. CHCl₃
B. CHI₃
C. CCl₄
D. CHF₃

Question 267:

• JAMB 2009

The simplest branched-chain hydrocarbon is

A. Ethane
B. Ethene
C. Propane
D. Butane

Question 268:

• JAMB 2009

Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have

A. A single bond
B. A double bond
C. A triple bond
D. An ionic bond

Question 269:

• JAMB 2010

In the preparation of oxygen by heating KClO₃ in the presence of MnO₂, only moderate heat is needed because the catalyst acts by

A. Lowering the pressure of the reaction
B. Increasing the surface area of the reactant
C. Increase the rate of the reaction
D. Lowering the energy barrier of the reaction

Question 270:

• JAMB 2010

The IUPAC nomenclature of the compound above is

A. 4 - ethyloctane
B. 5 - ethyloctane
C. 5 - propylheptane
D. 3 - propylheptane