Chemical Analysis

A quiz to test your knowledge of the different lab methods of chemical analysis required by the C3 syllabus. I couldn't find a comprehensive one when revising, so I decided to make one instead. I hope that you find it useful.

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  • Created by: carmella
  • Created on: 24-05-11 15:24
What is a cation?
an ion which has lost an electron
1 of 12
What is an anion?
an ion which has gained an electron
2 of 12
What colour would you expect a flame to turn if potassium is burnt?
Lilac
3 of 12
What do flame tests identify?
Metal cations
4 of 12
What ion would a brick red flame indicate the presence of?
Calcium
5 of 12
You add Sodium Hydroxide to a solution, and get a dirty green precipitate that gradually turns brown. What ion is present?
Iron (II)
6 of 12
You add Sodium Hydroxide to a liquid, which remains clear. The liquid starts to smell, and turns damp litmus paper blue. What ion is present?
Ammonium
7 of 12
You add Sodium Hydroxide to a solution, and then add aluminium powder and warm. There is no result: what ion is not present?
Ammonium
8 of 12
Silver Nitrate and dilute Nitric acid are added to iodine. What colour precipitate would you expect to form?
Yellow
9 of 12
You are testing for a sulfate ion. If you add Hydrochloric Acid and Barium Chloride, what result do you want?
Fizzing
10 of 12
I take a substance "X". The flame test burns with a pale yellow flame. I add Sodium Hydroxide and a white precipitate forms, which doesn't dissolve if I add more. I add Hydrochloric acid, and the substance fizzes. When lime water is added to this, it turn
Magnesium Carbonate
11 of 12
I take a substance "A". When burnt on a splint, it creates a faint green flame. I add diluted Hydrochloric acid and Barium Chloride, and the mixture remains clear. I add Silver Nitrate and Nitric Acid, and a white precipitate is formed. What is substance
Barium Chloride
12 of 12

Other cards in this set

Card 2

Front

What is an anion?

Back

an ion which has gained an electron

Card 3

Front

What colour would you expect a flame to turn if potassium is burnt?

Back

Preview of the front of card 3

Card 4

Front

What do flame tests identify?

Back

Preview of the front of card 4

Card 5

Front

What ion would a brick red flame indicate the presence of?

Back

Preview of the front of card 5
View more cards

Comments

carmella

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Some questions cut off: sorry! The end to question 11 is "it turns milky. What is substance "X"" and the end to 12 is simply ""A"?".

GraphicDavey B

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on question 10 I'm pretty sure that a white precipiate forms - it may fizz but a white precipitate is definitely a product of it

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