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Bonding And Properties
Test Description: Bonding and Properties - Ioninc, covalent and metallic bonding
Instructions: Answer all questions to get your test result.
1) Ionic substances have
A
It is impossible to say if they have high or low mpts and bpts
B
Can have high or low melting and boiling points
C
Low melting and boiling points
D
High melting and boiling points
2) Substance A conducts as a solid and a liquid. Its bonding type is:
A
Covalent Molecular
B
Covalent Network
C
Metallic
D
Ionic
3) Which of thew following is a covalent molecular substance?
A
Calcium
B
Ammonium chloride
C
Calcium sulfide
D
Phosphorus Hydride
4) Which of the following pairs of elements would react to form a molecule with the same shape as a methane (CH4) molecule?
A
N and O
B
Si and H
C
H and O
D
Mg and H
5) Which of the following is an example of an electrolyte?
A
A covalent liquid
B
A graphite rod
C
An ionic liquid
D
A metal
6) A covalent bond occurs when
A
A metal and non-metal atom atoms share a pair of electrons
B
A metal tranfers an electron to a non-metal atom
C
Two non-metal atoms share a pair of electrons
D
A metal's outer electrons become delocalised.
7) If a substance has a boiling point of 1412ºC and a melting point of 450ºC, at room temperature the substance will be:
A
A solid and a liquid
B
A solid
C
A liquid
D
A gas
8) The correct formula for carbon sulfide is
A
S2C
B
S4C2
C
CS2
D
C2S4
9) The type of bonding in calcium phosphate is
A
Covalent network
B
Metallic
C
Ionic
D
Covalent molecular
10) Which of the following substances will conduct electricity
A
NaCl(aq)
B
CO(l)
C
NH3(g)
D
MgO(s)
*select an answer for all questions
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