Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 251:

• JAMB 2008

The type of isomerism shown by cis- and trans- isomers is

A. Optical isomerism
B. Positional isomerism
C. Functional isomerism
D. Geometrical isomerism

Question 252:

• JAMB 2008

If the silver mirror test is positive, it indicates the presence of an

A. Alkyne
B. Alkanol
C. Alkanone
D. Alkanal

Question 253:

• JAMB 2008

If glucose is heated with concentration tetraoxosulphate (VI) acid, it will be dehydrated to

A. Carbon
B. Carbon (IV) oxide
C. Ethene
D. Ethanol

Question 254:

• JAMB 2008

The IUPAC nomenclature for the structure above is

A. 2, 3 - dichloro - 4, 4, 5 - trimethyl pent - 2 - ene
B. 4, 5 - dichloro - 2, 3 - dimethyl hex - 2 - ene
C. 2, 3 - dichloro - 4, 4 - dimethyl hex - 2- ene
D. 2, 3 dichloro - 2, 2 - dimethyl hex - 2 - ene

Question 255:

• JAMB 2008

A hydrocarbon X with a molar mass of 26 consists of 92.3% carbon. What is its molecular formular

A. C₂H₂
B. C₃H₃
C. C₄H₄
D. C₅H₅