Chemical Tests (starter)

Colour produced by Na⁺ ion in a flame test

• Lilac

• Orange-Red

• Red

• Yellow

Colour produced by K⁺ ion in a flame test

• Lilac

• Orange-Red

• Red

• Yellow

Colour produced by Li⁺ ion in a flame test

• Blue-Green

• Lilac

• Orange-Red

• Red

Colour produced by Ca²⁺ ion in a flame test

• Blue-Green

• Lilac

• Orange-Red

• Red

Colour produced by Cu²⁺ ion in a flame test

• Blue-Green

• Lilac

• Orange-Red

• Red

What is produced by Fe²⁺ when NaOH is added?

• Brown Precipitate

• Green Precipitate

• White Precipitate

• No precipitate, but a gas that turns damp pink litmus paper blue

What is produced by Fe³⁺ when NaOH is added?

• Brown Precipitate

• Green Precipitate

• White Precipitate

• No precipitate, but a gas that turns damp pink litmus paper blue

What is produced by Cu²⁺ when NaOH is added?

• Blue Precipitate

• Green Precipitate

• White Precipitate

• No precipitate, but a gas that turns damp pink litmus paper blue

What is produced by NH₄⁺ when NaOH is added?

• Blue Precipitate

• Green Precipitate

• White Precipitate

• No precipitate, but a gas that turns damp pink litmus paper blue

What is produced by Cl^- when nitric acid and silver nitrate are added?

• White Precipitate

• Cream Precipitate

• Yellow Precipitate

• Fizzing