Skip to content

Course home

Sign up

10.4 The Haber process and the use of NPK fertilisers

EasyMediumHard
1234567891011121314151617181920212223242526272829
Question 29
H

Why is nitric acid used to treat phosphate rock when an NPK fertiliser is being made?

[1]
A

It removes the calcium from the phosphate rock before it is used

B

It makes the phosphate rock dissolve without producing any salts

C

It adds nitrogen to the fertiliser as well as making the phosphorus soluble

D

It reduces the percentage of phosphorus in the finished fertiliser

Markscheme

10.4 The Haber process and the use of NPK fertilisers Questions

  1. GCSE
  2. /Chemistry
  3. /10.4 The Haber process and the use of NPK fertilisers

39 exam-style questions on AQA GCSE Chemistry 10.4 The Haber process and the use of NPK fertilisers, covering 10.4.1a The Haber process, 10.4.1b Equilibrium and rate in the Haber process, and 10.4.2 Production and uses of NPK fertilisers. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank