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10.4 The Haber process and the use of NPK fertilisers

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Question 26
H

Which is the balanced equation for the reaction of ammonia with phosphoric acid?

[1]
A

3NH3+H3PO4→(NH4)3PO43\text{NH}_3 + \text{H}_3\text{PO}_4 \rightarrow \text{(NH}_4\text{)}_3\text{PO}_43NH3​+H3​PO4​→(NH4​)3​PO4​

B

NH3+H3PO4→NH4PO4\text{NH}_3 + \text{H}_3\text{PO}_4 \rightarrow \text{NH}_4\text{PO}_4NH3​+H3​PO4​→NH4​PO4​

C

2NH3+H3PO4→(NH4)2PO42\text{NH}_3 + \text{H}_3\text{PO}_4 \rightarrow \text{(NH}_4\text{)}_2\text{PO}_42NH3​+H3​PO4​→(NH4​)2​PO4​

D

3NH3+H3PO4→3NH4PO43\text{NH}_3 + \text{H}_3\text{PO}_4 \rightarrow 3\text{NH}_4\text{PO}_43NH3​+H3​PO4​→3NH4​PO4​

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.

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