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6.2 Organic chemistry

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Question 13
F

The carboxylic acids are a homologous series. The first member of the series is methanoic acid, HCOOH\mathrm{HCOOH}HCOOH.

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

What is the relative formula mass of the fourth member of the series?

[1]
A

74

B

88

C

90

D

102

Markscheme

6.2 Organic chemistry Questions

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

63 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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