GradeGen

A chemical used to test for another substance, usually by producing an observable change.

In this required practical, you use qualitative reagents: chemicals that produce an observable change when a particular substance is detected.

For each test, state the reagent, any heating needed and the positive result—not just ‘it changes colour’.

A chemical used to test for another substance, usually by producing an observable change.

In this required practical, you use qualitative reagents: chemicals that produce an observable change when a particular substance is detected.

For each test, state the reagent, any heating needed and the positive result—not just ‘it changes colour’.

Reagent