DP Chemistry (last assessment 2024)

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Question 18N.1.hl.TZ0.17

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Date November 2018 Marks available [Maximum mark: 1] Reference code 18N.1.hl.TZ0.17
Level hl Paper 1 Time zone TZ0
Command term Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
18N.1.hl.TZ0.17

Which change is exothermic?

 

A.  1 2 Cl2 (g) → Cl (g)

B.   K (g) → K+ (g) + e−

C.   KCl (s) → K+ (g) + Cl− (g)

D.   Cl (g) + e− → Cl− (g)

[1]

Markscheme

D

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