Organic Compounds - Jamb Chemistry Past Questions and Answers

Question 386:

• JAMB 2019

Methane is prepared in the laboratory by heating a mixture of sodium ethanoate with soda lime. The chemical constituent(s) of soda lime is/are

A. Ca(OH)${}_2$ and NaOH
B. Na${}_2$CO${}_3$
C. NaCl
D. NaOH

Question 387:

• JAMB 2019

How many alkoxyalkanes can be obtained from the molecular formula C${}_4$H${}_{10}$O?

A. 4
B. 2
C. 1
D. 3

Question 388:

• JAMB 2019

When the end alkyl groups of ethyl ethanoate are interchanged, the compound formed is

A. Propylmethanoate
B. Ethylpropanoate
C. Methyl ethanoate
D. Methyl propanoate

Question 389:

• JAMB 2020

8g of CH${}_4$ occupies 11.2 at S.T.P. What volume would 22g of CH${}_3$CH${}_2$CH${}_3$ occupy under the same condition?

A. 3.7dm${}^3$
B. 11.2dm${}^3$
C. 22.4dm${}^3$
D. 33dm${}^3$

Question 390:

• 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