Jamb Chemistry Past Questions and Answers

Question 1641:

• JAMB 2011

Two organic compounds K and L were treated with a few drops of Fehling's solutions respectively . K formed a brick-red precipitate while L, remains unaffected. The compound K is an

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

Question 1642:

• JAMB 2011

Which of the following statements is true about 2-methylpropane and butane

A. They are members of the same homologous series
B. They have the same boiling point
C. They have different number of carbon atoms
D. They have the same chemical properties

Question 1643:

• JAMB 2011

with conc H₂SO₄ as catalyst
CH₃COOH + C₂H₅OH → CH₃COOC₂H₅ + H₂O

A. Esterification
B. Condensation
C. Saponification
D. Neutralization

Question 1644:

• JAMB 2011

In the diagram above , X is the ``

A. Enthalpy
B. Enthalpy change
C. Activation energy
D. Activated complex

Question 1645:

• JAMB 2011

The compound above exhibits

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