Which of the following would have covalent bonding?
0%
A compound made from metals
85%
A compound made from non-metals
15%
An element made from metals
0%
None of the above
Q.3.
Chlorine has seven electrons in its outer energy level (shell). Six of these are arranged in pairs with one on its own. How many covalent bonds can it form?
68%
One
0%
Two
16%
Three
16%
Seven
Q.4.
Why is the bonding in chlorine gas covalent?
22%
Chlorine gas is made from molecules
0%
Chlorine is an element
17%
Chlorine is a halogen
61%
Chlorine is a non-metal
Q.5.
Which of the following could have covalent bonding?
0%
An alloy
7%
Atoms of a metal
80%
Atoms of a non-metal
13%
Molecules of a non-metal
Q.6.
Which of the following is true about the compound carbon disulfide?
10%
It is made from molecules
20%
It is ionically bonded
50%
It is covalently bonded
20%
There are twice as many sulfur atoms as carbon atoms
Q.7.
Which of the following word equations correctly represents a reaction in which covalent bonding occurs?
67%
Hydrogen + oxygen → water
33%
Carbon + dioxide → carbon dioxide
0%
Sulfuric acid + zinc → hydrogen + zinc sulfate
0%
Chlorine + chlorine → dichlorine
Q.8.
How is a single covalent bond conveniently represented?
0%
Two dots side by side
50%
A short horizontal line between the symbols of the elements involved
38%
A dot followed by a dash followed by a dot
12%
A semi colon
Q.9.
Which of the following represents a molecule of carbon dioxide?
11%
O=O=C
33%
C=O=O
56%
O=C=O
0%
C=O=C
Q.10.
Is salt covalently bonded?
11%
Yes, because it is made from crystals
22%
Yes, because it dissolves in water
56%
No, because it is made from a metal joined to a non-metal
11%
No, because it can be obtained from the ground
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