User interface language: English | Español

Date May 2017 Marks available 1 Reference code 17M.1.sl.TZ2.21
Level SL Paper 1 Time zone TZ2
Command term Identify Question number 21 Adapted from N/A

Question

Which element is reduced in the following decomposition?

(NH4)2Cr2O7(s) → N2(g) + Cr2O3(s) + 4H2O(g)

A.     N

B.     H

C.     Cr

D.     O

Markscheme

C

Examiners report

[N/A]

Syllabus sections

Core » Topic 9: Redox processes » 9.1 Oxidation and reduction
Show 165 related questions

View options