Waec Chemistry 2013 Past Questions and Answers

Question 11:

• WAEC 2013

Rare gases are stable because they

A. Are chemically active
B. Contain equal number of protons and neutrons
C. Contain more electrons than protons
D. Have octet structures

Question 12:

• WAEC 2013

In the periodic table, alkaline earth metals can be found in group

A. L
B. Ll
C. VI
D. VII

Question 13:

• WAEC 2013

In which of the following series are the atoms arranged in order of increasing ionization energy?

A. Li, Na K
B. B, Be, Li
C. O, F, Ne
D. Be, mG, Ca

Question 14:

• WAEC 2013

Which of the following bond types is responsible for the high boiling point of water?

A. Metallic bond
B. Covalent bond
C. Lonic bond
D. Hydrogen bond

Question 15:

• WAEC 2013

In metallic solid, the forces of attraction is between the mobile valence electrons and the

A. Atoms
B. Neutrons
C. Negative ions
D. Positively charged nuclei