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Question 18M.1.hl.TZ2.20

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.hl.TZ2.20
Level hl Paper 1 Time zone TZ2
Command term Apply Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
18M.1.hl.TZ2.20

When X reacts with Y to give Z, the following graph is plotted. What can be deduced from the graph?

M18/4/CHEMI/HPM/ENG/TZ2/20

A.     The concentration of X is directly proportional to time.

B.     The reaction is first order overall.

C.     The reaction is zero order with respect to X.

D.     The reaction is first order with respect to X.

[1]

Markscheme

C

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