Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 256:

• JAMB 2008

A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into

A. CH₂ = CH - CH₂ - CH₃
B. CH₃ CH₂ - C ≡ CH
C. CH₃ CH₂ CH₂ CH₃
D. CH₃ - C C - CH₃

Question 257:

• JAMB 2008

Reduction of nitroalkanes, nitrites and amides is a route for the preparation of

A. Amines
B. Alkenes
C. Polymers
D. Detergents

Question 258:

• JAMB 2008

Reduction of alkanonoes with LialH₄ produces

A. Primary alkanols
B. Secondary alkanols
C. Tertiary alkanols
D. Polyhydric alkanols

Question 259:

• JAMB 2008

The product obtained when a mixture of benzene vapour and hydrogen are passed over nickel catalyst at 180^oC is

A. Cyclohexane
B. Cyclopentane
C. N- hexane
D. N - pentane

Question 260:

• JAMB 2009

Which of the following molecules has two other positional isomers?

A. CH₃CH₂Br
B. CH₃CHBrCH₃
C. CBr₂F₂
D. CH₂CHBrCH₂Br