Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 191:

• JAMB 2002

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

A. CH₃CH₂CH₂CH₃
B. CH₂ = CH - CH₂CH₃
C. CH₃CH₂ - C = CH
D. CH₃ - C = C - CH₃

Question 192:

• JAMB 2002

The boiling of fat and aqueous caustic soda is referred to as

A. Hydrolysis
B. Esterification
C. Acidification
D. Saponification

Question 193:

• JAMB 2002

which of the following polymers is suitable for packaging and electrical insulation?

A. Polyamide
B. Polyethene
C. Polycarbonate
D. Polystyrene

Question 194:

• JAMB 2002

The intermediate product formed when ethanol is progressively oxidized to ethanoic acid with potassium heptaoxodichromate (IV) is

A. Butanal
B. Ethanal
C. Methanal
D. Propanal

Question 195:

• JAMB 2002

¹⁴₆C → X + B
X in the equation above represents

A. ¹²₆C
B. ¹²₅B
C. ¹⁴₇N
D. ¹³₆C