Chemistry Flame Tests and Reactions Quiz

What colour would Lithium burn in a flame test?

• Crimson

• Blue

• Green

• Yellow

What is the test and result for Oxygen gas

• The test for oxygen gas is to add a glowing splint, and the result is that the splint reignites.

• The test for oxygen gas is a litmus test, and the result is a color change.
• The test for oxygen gas is a flame test, and the result is a loud pop.
• The test for oxygen gas is a bubbling test, and the result is the formation of bubbles.

What is the test for a carbonate?

• Add hydrochloric acid and look for effervescence

• Add sodium hydroxide and look for a color change

• Add silver nitrate and look for a precipitate

• Add barium chloride and look for a white precipitate

What would happen when Sodium Hydroxide is added to a solution of Fe(III) ions?

• A blue precipitate forms

• A green precipitate forms

• An orange/brown precipitate forms

• No reaction occurs

What is the test and result for Hydrogen gas

• The test for hydrogen gas is a cold splint, and the result is a fizzing sound.
• The test for hydrogen gas is a glowing splint, and the result is a bright flash.
• The test for hydrogen gas is add a lit splint, and the result is a 'pop' sound.

• The test for hydrogen gas is a lit match, and the result is a hissing sound.

Silver Nitrate is added to a solution and a cream precipitate is seen. What does this mean?

• Presence of chloride ions

• Presence of bromide ions

• Presence of iodide ions

• Presence of sulfate ions

What is the test for Ammonium Ions?

• Add NaOH and heat; test with damp red litmus paper.
• Add NaOH and test with blue litmus paper.
• Mix with water and check for bubbles.
• Add HCl and observe color change.

Barium Nitrate is added to a solution of Sodium Sulphate. What would be observed?

• A white precipitate forms

• A yellow precipitate forms

• A blue precipitate forms

• No precipitate forms

What would happen if sodium hydroxide is added to a solution of Aluminium ions, first a few drops and then in excess?

• A white precipitate forms, then dissolves

• A blue precipitate forms, then dissolves

• A green precipitate forms, then dissolves

• A white precipitate forms that does not redissolve

A series of tests are performed on an unknown compound. What compound is it?

A flame test gives a yellow flame;

Dilute nitric acid followed by silver nitrate gives a yellow precipitate.

• Sodium chloride

• Potassium iodide

• Sodium iodide

• Sodium bromide