DP Chemistry (last assessment 2024)

Test builder »

Question 17N.2.hl.TZ0.7b

Select a Test
Date November 2017 Marks available [Maximum mark: 2] Reference code 17N.2.hl.TZ0.7b
Level hl Paper 2 Time zone TZ0
Command term Predict Question number b Adapted from N/A
b.
[Maximum mark: 2]
17N.2.hl.TZ0.7b

Consider the following half-cell reactions and their standard electrode potentials.

(b)

Predict, giving a reason, the direction of movement of electrons when the standard nickel and manganese half-cells are connected.

[2]

Markscheme

electron movement «in the wire» from Mn(s) to Ni(s)

Eθ «for reduction» of Ni2+ is greater/less negative than Eθ «for reduction» of Mn2+

OR

Ni2+ is stronger oxidizing agent than Mn2+

OR

Mn is stronger reducing agent than Ni

Syllabus sections