DP Chemistry (last assessment 2024)

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Question 19N.3.sl.TZ0.b

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.sl.TZ0.b
Level sl Paper 3 Time zone TZ0
Command term Distinguish, State Question number b Adapted from N/A
b.
[Maximum mark: 1]
19N.3.sl.TZ0.b

Catalysts are commonly used in industry.

Distinguish between heterogeneous and homogeneous catalysts, giving one difference.

[1]

Markscheme

Any one of the following:

NOTE: Accept “heterogeneous adsorb reactants and homogeneous” but do not accept “absorb” for “adsorb”.
Accept “heterogeneous have active sites and homogeneous do not”.

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