Ionic Bonding – IB1

1.       What happens when sodium and oxygen combine together?

A.      Each sodium atom gains one electron.

B.      Each sodium atom loses one electron.

C.      Each oxygen atom gains one electron.

D.      Each oxygen atom loses one electron.

ANSWER

(Total 1 mark)

 

 

2.       Which statement is true for most ionic compounds?

A.      They contain elements of similar electronegativity.

B.      They conduct electricity in the solid state.

C.      They are coloured.

D.      They have high melting and boiling points.

ANSWER

(Total 1 mark)

 

 

3.       Which statement is a correct description of electron loss in this reaction?

                                2Al + 3S → Al₂S₃

A.      Each aluminium atom loses two electrons.

B.      Each aluminium atom loses three electrons.

C.      Each sulfur atom loses two electrons.

D.      Each sulfur atom loses three electrons.

ANSWER

(Total 1 mark)

 

 

4.       What is the formula for an ionic compound formed between an element, X, from group 2 and an element, Y, from group 6?

A.      XY

B.      X₂Y

C.      XY₂

D.      X₂Y₆

ANSWER

(Total 1 mark)

 

 

5.       What is the formula of the compound formed when aluminium reacts with oxygen?

A.      Al₃O₂

B.      Al₂O₃

C.      AlO₂

D.      AlO₃

ANSWER

(Total 1 mark)

 

 

6.       Element X is in group 2, and element Y in group 7, of the periodic table. Which ions will be present in the compound formed when X and Y react together?

A.      X⁺ and Y^–

B.      X ²⁺ and Y^–

C.      X⁺ and Y^2–

D.      X^2– and Y⁺

ANSWER

(Total 1 mark)