DP Chemistry (first assessment 2025)

Test builder »

Question 19M.2.SL.TZ2.c

Select a Test
Date May 2019 Marks available [Maximum mark: 2] Reference code 19M.2.SL.TZ2.c
Level SL Paper 2 Time zone TZ2
Command term Describe Question number c Adapted from N/A
c.
[Maximum mark: 2]
19M.2.SL.TZ2.c

Describe how the relative reactivity of rhenium, compared to silver, zinc, and copper, can be established using pieces of rhenium and solutions of these metal sulfates.

[2]

Markscheme

place «pieces of» Re into each solution    [✔]

if Re reacts/is coated with metal, that metal is less reactive «than Re»    [✔]

 

Note: Accept other valid observations such as “colour of solution fades” or “solid/metal appears” for “reacts”.

Examiners report

Many candidates chose to set up voltaic cells and in other cases failed to explain the actual experimental set up of Re being placed in solutions of other metal salts or the reaction they could expect to see.

Syllabus sections