Testing the pH of oxides

In association with

A circular plastic chart with the different possible colours of universal indicator, used for determining the pH of a solution

Source: © Shutterstock

Use this class practical to investigate the pH of different metal and non-metal oxides using a universal indicator. Includes kit list and safety instructions.

In this experiment, students test samples of a range of oxides in water with universal indicator solution, observing that their pH varies. They establish the idea that the soluble oxides of metals are alkaline and the oxides of non-metals are acidic.

Thanks for using the RSC’s education resources. You can view one resource per month as a visitor, or two resources per month when you’re logged in with a personal account.

A photograph of a teacher standing in a white lab coat, speaking with a class of children in a laboratory, is superimposed on a colourful background. Text reads "Teach Chemistry means support for classroom and staff room".

Register for Teach Chemistry for free, unlimited access

Registration is open to all teachers and technicians at secondary schools, colleges and teacher training institutions in the UK and Ireland.

Get all this, plus much more: 

  • unlimited access to resources, core practical videos and Education in Chemistry articles
  • teacher well-being toolkit, personal development resources and online assessments
  • applications for funding to support your lessons

Set up your Teach Chemistry account

Already a Teach Chemistry member? Sign in now.

Not a science teacher or technician based in the UK or Ireland?  Don’t worry – you can also access all our resources with Royal Society of Chemistry membership.