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2.2 Bonding

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Question 18
F

Phosphorus is in Group 5. Chlorine is in Group 7.

Phosphorus trichloride, PCl3\mathrm{PCl_{3}}PCl3​, is a simple molecule. Each chlorine atom is bonded to the phosphorus atom by a single covalent bond. Every atom has 8 electrons in its outer shell.

A dot and cross diagram of PCl3\mathrm{PCl_{3}}PCl3​ is drawn, showing only the outer shell electrons.

How many non-bonding pairs of electrons does the diagram show in total?

[1]
A

1

B

9

C

10

D

13

Markscheme

2.2 Bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.2 Bonding

64 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.

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