Erwin Michalak
New member
Which of these substances is an ionic compound?
I.NCl3
II.MgF2
III.AlBr3
IV.CH4
Answer
a.
I and II
b.
II and III
c.
II and IV
d.
II, III and IV
e.
II only
Which of these will not form a positive ion in an ionic compound?
Answer
a.
Mg
b.
Ba
c.
Sn
d.
P
e.
Rb
How many bonding pairs of electrons are around the central atom in HCN?
Answer
a.
0
b.
1
c.
2
d.
3
e.
4
I.NCl3
II.MgF2
III.AlBr3
IV.CH4
Answer
a.
I and II
b.
II and III
c.
II and IV
d.
II, III and IV
e.
II only
Which of these will not form a positive ion in an ionic compound?
Answer
a.
Mg
b.
Ba
c.
Sn
d.
P
e.
Rb
How many bonding pairs of electrons are around the central atom in HCN?
Answer
a.
0
b.
1
c.
2
d.
3
e.
4