Waec Chemistry 2011 Past Questions and Answers

Question 11:

• WAEC 2011

Which of the following arrangements is in order of increasing metallic property?

A. Li < Na < k
B. Na < Li < K
C. K
D. K < Li < Na

Question 12:

• WAEC 2011

Chlorine, bromine and iodine belong to the same group and

A. Are gaseous at room temperature.
B. Form white precipitate with AgNO_3(aq)
C. React violently with hydrogen without heating
D. React with alkali

Question 13:

• WAEC 2011

Which of the following elements can conveniently be placed in two groups in the periodic table ?

A. Carbon
B. Copper
C. Hydrogen
D. Oxygen

Question 14:

• WAEC 2011

The bond formed when two electrons that are shared between two atoms are donated by only one of the atoms is

A. Covalent
B. Dative
C. Ionic
D. Metalic

Question 15:

• WAEC 2011

When element ₂₀A combines with element ₈Y,

A. A covalent compound, AY is formed
B. An ionic compound AY is formed
C. An ionic compound, A₂Y is formed
D. A covalent compound, _AY₂ is formed