Answer Guide Unit S3_9D – National 5 Chemistry Homework Answers

MCQ	Answer	Area of Chemistry
1.	C	[Reactions of Alkenes – (Catalytic Hydration)]
2.	C	[Metallic Bonding]
3.	D	[Isomers]
4.	A	[Problem Solving]
5.	D	[Combustion]
6.	C	[Combustion]
7.	A	[Problem Solving – Polymers]
8.	B	[Formation of Ions]

9.
	B
	[Problem Solving – Properties of Alkenes]
10.
	B
	[Problem Solving – General Formula]
11.
a)
	[Fuels – Definition]
b)

	[Word Equations/ Chemical Formula – Challenging]
c)

	[Ionic Formulae]
12.
a)

	[Naming Hydrocarbons]
b)

	[Problem Solving – Structural Formula]
c)


	[Reactions of Alkenes – Hydration]
13.	i)
a)	C₄H₁₀
b)	C₇H₁₆
c)	C₅H₁₀
	[Molecular Formula]
	ii)
a)	methylpropane
b)	2,3-dimethylpentane
c)	pent-2-ene
	[Molecular Formula]
	iii)
	Any acceptable answer
	[Isomers/ Structural Formulae]