Answer Guide Unit S3_8A – National 5 Chemistry Homework Answers

MCQ	Answer	Area of Chemistry
1.	C	[Naming Hydrocarbons/ structural formulae]
2.	C	[Data Book/ Physical properties of hydrocarbons]
3.	A	[Naming Hydrocarbons/ structural formulae]
4.	B	[Homologouse series/ functional groups/ saturated terms]
5.	B	[Identifying Hydrocarbon functional groups]
6.	C	[Endothermic reaction]
7.	D	[Structure of elements]
8.	C	[Atom terminology – atomic number]

9.
	D
	[isomers – alcohols]
10.
a)	Catalytic hydration
	[reactions of alkenes]
b)	structural formula of butan-1-ol or 2-methylpropan-2-ol

	[isomers – alcohols]

11.
a)	As the number of chlorine atoms increases, the anaesthetic effect increases.

	[Problem Solving – Data interpretaion]
b)
	[Chemical Equations]
12.
a)	Structure of butanoic acid

	[Structural formula]
b)	pentyl butanoate
	[Problem Solving]
13.
i)


ii)

iii)

iv)