GCSE Edexcel Chemistry Tests for cations: A flame test can be used to iden

Question

A flame test can be used to identify metal ions in a substance.

Complete step 2 of how to carry out a flame test.

step 1 dip a flame test wire in dilute hydrochloric acid and then hold the wire in a roaring Bunsen flame until the flame is colourless

step 2 _________________________________________

step 3 hold the wire with the substance in a roaring Bunsen burner flame.

Many metal ions produce a coloured flame in a flame test.
Draw one straight line from each metal ion to its flame colour in a flame test.

metal ion		flame colour

________		blue-green

copper ion		______				ilac

potassium ion		______				orange-red

sodium ion		______				red

________		yellow

A flame test can be used to identify metal ions in a substance - Edexcel - GCSE Chemistry - Question 3 - 2023 - Paper 2