Skip to content

Course home

Sign up

6.2 Organic chemistry

EasyMediumHard
123456789101112131415161718192021222324
Question 4
F

Alkanes have the general formula CnH2n+2\mathrm{C_{n}H_{2n+2}}Cn​H2n+2​.

A molecule of an alkane contains 26 atoms in total.

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

What is the relative formula mass of this alkane?

[1]
A

100

B

112

C

114

D

128

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.

Question bank