Qualitative Analysis: Tests for Ions Quiz

What color does lithium ions (Li+) produce in a flame test?

• Blue-green

• Lilac

• Yellow

• Red

What color does sodium ions (Na+) produce in a flame test?

• White

• Green

• Orange-red

• Yellow

What color does potassium ions (K+) produce in a flame test?

• Brown

• Cream

• Lilac

• Blue

What color does calcium ions (Ca2+) produce in a flame test?

• Red

• Yellow

• Blue-green

• Orange-red

What color does copper ions (Cu2+) produce in a flame test?

• Blue-green

• Lilac

• Yellow

• White

What color precipitate does aluminium ions (Al3+) form with sodium hydroxide?

• White

• Blue

• Green

• Brown

What color precipitate does calcium ions (Ca2+) form with sodium hydroxide?

• White

• Blue

• Green

• Brown

What color precipitate does copper ions (Cu2+) form with sodium hydroxide?

• White

• Brown

• Green

• Blue

What color precipitate does iron(II) ions (Fe2+) form with sodium hydroxide?

• Green

• Blue

• White

• Brown

What color precipitate does iron(III) ions (Fe3+) form with sodium hydroxide?

• Brown

• Blue

• White

• Green