WAEC Past Questions and Answers - Page 1673

8,361.

Which of the following is used widely in the manufacture of flavours and perfumes?

A.

Alkanoates

B.

Alkanones

C.

Alkanes

D.

Complex sugars

E.

Aliphatic compounds

Correct answer is A

No explanation has been provided for this answer.

8,362.

In preparing for parturition of a sow, warmth should be provided to

A.

Promote growth of hair of the young

B.

Make the young suckle colostrum

C.

Prevent anaemia in the young

D.

Prevent chilling of the young

Correct answer is D

No explanation has been provided for this answer.

8,363.

Alkanes react with the halogens mainly by

A.

oxidation

B.

polymerization

C.

addition

D.

reduction

E.

substitution

Correct answer is E

No explanation has been provided for this answer.

8,364.

A sow that is not producing milk after farrowing should be given

A.

Oxytocin

B.

Antibiotic

C.

Anthelmintric drug

D.

Sulphaquinoxaline

Correct answer is A

No explanation has been provided for this answer.

8,365.

The by-product of the fermentation of sugar to ethanol is

A.

propane -1,2,3-triol

B.

ethyl ethanoate

C.

ethanedioc acid

D.

propanol

E.

carbon (lV) oxide

Correct answer is E

No explanation has been provided for this answer.