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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
High melting and boiling points
B
Low melting and boiling points
C
It is impossible to say if they have high or low mpts and bpts
D
Can have high or low 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
Ionic
D
Metallic
3) Which of thew following is a covalent molecular substance?
A
Calcium sulfide
B
Phosphorus Hydride
C
Ammonium chloride
D
Calcium
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
Mg and H
D
H and O
5) Which of the following is an example of an electrolyte?
A
A graphite rod
B
A covalent liquid
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's outer electrons become delocalised.
C
Two non-metal atoms share a pair of electrons
D
A metal tranfers an electron to a non-metal atom
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 liquid
C
A gas
D
A solid
8) The correct formula for carbon sulfide is
A
C2S4
B
CS2
C
S2C
D
S4C2
9) The type of bonding in calcium phosphate is
A
Covalent network
B
Ionic
C
Covalent molecular
D
Metallic
10) Which of the following substances will conduct electricity
A
MgO(s)
B
NaCl(aq)
C
NH3(g)
D
CO(l)
*select an answer for all questions
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