Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 391:

• JAMB 2020

Liquid 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 alkanoic acid
C. Alkali
D. Alkanol

Question 392:

• JAMB 2020

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

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

Question 393:

• JAMB 2020

An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be?

A. Alkene
B. Alkanal
C. Alkanone
D. Alkanoic Acid

Question 394:

• JAMB 2020

The substance often used for vulcanization of rubber is?

A. Chlorine
B. Hydrogen peroxide
C. Sulphur
D. Tetraoxosulphate(vi) acid

Question 395:

• JAMB 2020

The chlorinated alkane often used industrially to remove grease is?

A. Tetrachloromethane
B. Chloromethane
C. Trichloromethane
D. Dichloromethane