DP Chemistry (last assessment 2024)

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Question 17N.1.hl.TZ0.15

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.1.hl.TZ0.15
Level hl Paper 1 Time zone TZ0
Command term Question number 15 Adapted from N/A
15.
[Maximum mark: 1]
17N.1.hl.TZ0.15

Which statements are correct for ionic compounds?

I.   Lattice energy increases as ionic radii increase.
II.  Within the same group, the melting point of salts tends to decrease as the radius of the cation increases.
III. Solubility in water depends on the relative magnitude of the lattice energy compared to the hydration energy.

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

[1]

Markscheme

C

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