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Edexcel A-Level Chemistry AS 4.9 The General Formula of Alkanes and Cycloalkanes and Understand That They Are Hydrocarbons Compounds of Carbon and Hydrogen Questions

Use marked Edexcel IAL Chemistry questions to identify hydrocarbons, distinguish saturated compounds and deduce alkane or cycloalkane formulae from evidence.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Define hydrocarbons and saturated hydrocarbons and identify their formula patterns.
  • Deduce molecular formulae for alkanes and cycloalkanes from structure or molar-mass evidence.

Edexcel A-Level Chemistry AS 4.9 The General Formula of Alkanes and Cycloalkanes and Understand That They Are Hydrocarbons Compounds of Carbon and Hydrogen Questions question 1

[Maximum number: 2]

This question is about cycloalkanes.

Question (a)

(a)

The skeletal formula of cycloalkane D is shown.

Figure for Question (a) — Edexcel A-Level Chemistry AS
[ 1 ]

Question (i)

(i)

Give the molecular formula of D.

[ 1 ]

Question (b)

(b)

A cycloalkane, E, has a molar mass of 126 g mol−1126 \mathrm{~g} \mathrm{~mol}^{-1}.

Deduce the molecular formula of E.

[ 1 ]
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