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6.2 Organic chemistry

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Question 25

Ethanol, C2H5OH\mathrm{C_2H_5OH}C2​H5​OH, and another alcohol are members of the same homologous series. The relative formula mass of the other alcohol is 88.

Relative atomic mass (ArA_rAr​): H = 1.0 C = 12.0 O = 16.0

How many carbon atoms are in one molecule of the other alcohol?

[1]
A

6

B

7

C

4

D

5

Markscheme

6.2 Organic chemistry Questions

  1. GCSE
  2. /Chemistry
  3. /6.2 Organic chemistry

131 exam-style questions on OCR GCSE Chemistry 6.2 Organic chemistry, covering 6.2.1 Crude oil and fractional distillation, 6.2.2 Cracking and dependence on hydrocarbons, 6.2.3 Functional groups and homologous series, 6.2.4 Reactions of alkanes, alkenes and alcohols, 6.2.5 Addition polymerisation and repeat units, 6.2.6 Naturally occurring polymers, 6.2.7 Chemical cells and fuel cells, and 6.2.8 Condensation polymerisation and how to make one. Each one has a worked solution and a mark scheme showing where the marks go.

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