National 5 Chemistry Nature's Chemistry Quiz 1

Quiz by Isabel McCluskey

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Q 1/22
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1. Which of the following is the correct molecular formula for cyclohexane?
29

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22 questions

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Q1
1. Which of the following is the correct molecular formula for cyclohexane?
30s
Q2
2.
1,1-dimethypropane
3-methylbutane
2-methylpentane
2-methylbutane
30s
Q3
3.
3, 4, 5
1, 4, 6
1, 2, 4
2, 3, 5
30s
Q4
4.
Pent - 2 - ene
Pent - 1 - ene
But - 1- ene
30s
Q5
5. Which of the following alcohols has the highest boiling point? You may wish to use your data booklet to help you.
Butan - 2 - ol
Butan - 1 - ol
Propan - 1 - ol
Propan - 2 - ol
30s
Q6
6. A reaction is endothermic if
heat is released during the reaction
energy is required to start the reaction
the temperature rises during the reaction.
the temperature drops during the reaction
30s
Q7
7.
3,4-dimethylpropane
3,4-dimethylpentane.
2,3-dimethylpropane
2,3-dimethylpentane
30s
Q8
10. When methane burns in a plentiful supply of air, the products are
carbon and water
carbon dioxide and water
carbon dioxide and hydrogen.
carbon monoxide and water
30s
Q9
11.
30s
Q10
12.
3,4-dimethylpent-1-ene.
1,2-dimethylpent-1-ene
2,3-dimethylpent-1-ene
3,4-dimethylpent-4-ene
30s
Q11
13.
30s
Q12
14.
Hydrocarbons with the same molecular mass have the same flash point.
The flash point of a hydrocarbon increases as the boiling point increases.
Octane will ignite at 0 ºC.
Option 5
In a homologous series the flash point decreases as the number of carbon atoms increases.
30s
Q13
15. Which of the following could be the molecular formula for an alkane?
30s
Q14
16.
B
C
D
A
30s
Q15
17. A compound burns in air. The only products of the reaction are carbon dioxide, sulfur dioxide and water.The compound must contain
carbon, hydrogen, sulfur and oxygen.
carbon and hydrogen only
carbon and sulfur only
carbon, hydrogen and sulfur
30s