Jamb Chemistry Past Questions and Answers

Question 1636:

• JAMB 2011

The compound above exhibits

A. Geometric isomerism
B. Optical isomerism
C. Structural isomerism
D. Positional isomerism

Question 1637:

• JAMB 2011

An organic compound has an empirical formula CH₂O and vapour density of 45.
What is the molecular formula?
[C = 12, H = 1, O = 16]

A. C₃H₇OH
B. C₂H₅OH
C. C₃H₆O₃
D. C₂H₄O₂

Question 1638:

• JAMB 2011

At 25^o and zymase as catalyst,
C₆H₁₂₆ → 2C₂H₅OH + 2CO₂ + energy
The reaction above represented by the equation above is useful in the production of

A. Propanol
B. Butanol
C. Methanol
D. Ethanol

Question 1639:

• JAMB 2011

The number of isomers that can be obtained from C₄H₁₀ is

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

Question 1640:

• JAMB 2011

The functional groups present in the compound above are

A. Alkene and halo-group
B. Hydroxyl and chloro-group
C. Alkene and chloro-group
D. Hydroxyl and halo-group