MEDIUM
AS and A Level
IMPORTANT
Earn 100

The oxidation number of nitrogen can vary. Give nitrogen's oxidation number in N2. 

Important Questions on Nitrogen

MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>BEFORE YOU START>Q 3
The oxidation number of nitrogen can vary. Give nitrogen's oxidation number in NO.
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>BEFORE YOU START>Q 3
The oxidation number of nitrogen can vary. Give nitrogen's oxidation number in NO3-.
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>BEFORE YOU START>Q 4

Discuss which substance is acting as an acid and which is a base in this reaction. 

HClaq + H2Ol →H3O+aq + Cl-aq

HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>BEFORE YOU START>Q 5
Write a reaction pathway diagram to explain how catalysts work.
MEDIUM
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>Questions for discussion>Q •
Nitrogen-based fertilisers do more harm than good. How? Explain.
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>Questions for discussion>Q •
Try to make suggestions that could help reduce any harmful effects caused by the large-scale use of fertilisers.
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>Question>Q 1
Explain the lack of reactivity of nitrogen gas.
HARD
AS and A Level
IMPORTANT
Chemistry for Cambridge International AS & A Level Coursebook with Digital Access (2 Years)>Chapter 13 - Nitrogen>Question>Q 1

There are three steps needed to complete the oxidation of nitrogen gas. Which row in the table shows the correct change in the oxidation number of nitrogen in each of the three-step?

Question Image