JAMB Past Questions and Answers - Page 1653

8,261.

Catalytic hydrogenation of benzene produces?

A.

an aromatic hydrocarbon

B.

margarine

C.

cyclohexane

D.

D.D.T

Correct answer is C

No explanation has been provided for this answer.

8,262.

Which organization played a crucial role in the fight against apartheid in South Africa and was led by Nelson Mandela?

A.

Economic Community of West African States (ECOWAS)

B.

African Union (AU)

C.

Southern African Development Community (SADC)

D.

African National Congress (ANC)

Correct answer is D

The African National Congress (ANC) played a crucial role in the fight against apartheid in South Africa. Nelson Mandela, who later became the first black president of South Africa, was a prominent leader of the ANC.

8,263.

Palm wine turns sour with time because?

A.

the sugar content is converted into alcohol

B.

the carbon (IV) oxide formed during the fermentation process has a sour taste

C.

it is commonly adulterated by the tappers and sellers

D.

microbial activity results in the production of orgain acids within it

Correct answer is D

No explanation has been provided for this answer.

8,264.

The carbon atoms on ethane are?

A.

sp2 hybridized

B.

sp3 hybridized

C.

sp2d hybridized

D.

sp hybridized

Correct answer is B

No explanation has been provided for this answer.

8,265.

Al2O3(s) + 3H2SO4(aq) → Al2(SO4(aq)) + 3H2(I)O
Al2O3(s) + 2NaOH(aq)) + 3H2(I)O → 2NaAl(OH)4(aq)).
We can conclude from the equations above that Al2O3(s) is?

A.

an acidic oxide

B.

an amphoteric oxide

C.

a basic oxide

D.

a neutral oxide

Correct answer is B

No explanation has been provided for this answer.