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7.3 Group 0

7.3 Group 0

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Question 4
H

The metal filament in a light bulb is hot enough to glow. The bulb is filled with argon instead of air.

Which is the best explanation for using argon?

[1]
A

Argon is non-flammable, so the gas inside the bulb cannot catch fire when the filament glows

B

Argon has a low density, so it rises away from the filament and stops it from overheating

C

Argon atoms have eight outer electrons, so the gas conducts heat away from the filament

D

Argon is inert, so the hot filament does not react with it as it would with oxygen in air

Markscheme

7.3 Group 0 Questions

  1. GCSE
  2. /Chemistry
  3. /7.3 Group 0

44 exam-style questions on Edexcel GCSE Chemistry 7.3 Group 0, covering 7.3.1 The noble gases. Each one has a worked solution and a mark scheme showing where the marks go.

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