Jamb Chemistry 2004 Past Questions and Answers

Question 31:

• JAMB 2004

The allotropy of carbon used in the decolourization of sugar is

A. Graphite
B. Soot
C. Charcoal
D. Lampblack

Question 32:

• JAMB 2004

Which of the following gases can be collected by the method of downward delivery?

A. Chlorine
B. Oxygen
C. Ammonia
D. Hydrogen

Question 33:

• JAMB 2004

When steam is passed over red-hot carbon, the substances produced are

A. Hydrogen and trioxocarbonate (IV) acid
B. Hydrogen, oxygen and carbon (IV) oxide
C. Hydrogen and carbon (II) oxide
D. Hydrogen and carbon (IV) oxide

Question 34:

• JAMB 2004

Sulphur (IV) oxide bleaches by

A. Reduction
B. Oxidation
C. Hydration
D. Adsorption

Question 35:

• JAMB 2004

Carbon is tetravalent because

A. The electrons in both the 2s and 2p orbitals are equivalent
B. The electrons in all the orbitals of carbon are equivalent
C. The 2s and 2p atomic orbitals hybridize
D. All the atomic orbitals of carbon hybridize