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4.2 Identifying the products of chemical reactions

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Question 26
F

Chloromethane has the formula CH3Cl\mathrm{CH_{3}Cl}CH3​Cl. Chlorine has two isotopes, chlorine-35 and chlorine-37.

Relative atomic mass (ArA_rAr​): H = 1 C = 12

A sample of chloromethane is analysed by mass spectrometry.

At which mass-to-charge ratios are the peaks for whole molecules of chloromethane?

[1]
A

35 and 37

B

47 and 49

C

50 and 52

D

50.5 only

Markscheme

4.2 Identifying the products of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Identifying the products of chemical reactions

52 exam-style questions on OCR GCSE Chemistry 4.2 Identifying the products of chemical reactions, covering 4.2.1 Tests to identify gases, 4.2.2 Tests for aqueous ions and flame tests, and 4.2.3 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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