DP Chemistry (last assessment 2024)

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Question 21M.1.hl.TZ2.17

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1.hl.TZ2.17
Level hl Paper 1 Time zone TZ2
Command term Predict Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
21M.1.hl.TZ2.17

Which change results in the largest negative value of ΔS?

A.  C2H5OH (l) + SOCl2 (l) → C2H5Cl (l) + SO2 (g) + HCl (g)

B.  CaCO3 (s) → CaO (s) + CO2 (g)

C.  H2O (l) → H2O (s)

D.  NH3 (g) + HCl (g) → NH4Cl (s)

[1]

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D

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