Question 511:

• JAMB 1987

Local black soap is made by boiling palm oil with liquid extract of ash. The function of the ash is to provide the?

A. Acid
B. Ester of allanoic acid
C. Alkali
D. Alkanol

Question 512:

• JAMB 1987

Synthetic rubber is made by polymerization of?

A. 2 methyl buta - 1, 3 - diene
B. 2 methyl buta - 1, 2 - diene
C. 2 methyl but -1-ene
D. 2 methyl but-2-ene

Question 513:

• JAMB 1987

Complete oxidation of propan -1- ol gives?

A. Propanal
B. Propan-2-al
C. Propan-1-one
D. Propanoic acid

Question 514:

• JAMB 1987

When water drops are added to calcium carbide in a container and the gas is passed through a jet and lifted, the resultant flame is called an?

A. Oxyethylene flame
B. Oxyhydrocarbon flame
C. Oxyacetylene flame
D. Oxymethane flame

Question 515:

• JAMB 1987

The greater the different in electronegativity between bonded atoms, the?

A. Lower the polarity of the bond
B. Higher the polarity of the bond
C. Weaker the bond
D. Higher the possibility of the substance formed being a molecule