Becky Muggeridge
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Quiz on Chemistry - tests for cations, anions, water and more, created by Becky Muggeridge on 04/01/2014.

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Becky Muggeridge
Created by Becky Muggeridge about 10 years ago
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Chemistry - tests for cations, anions, water and more

Question 1 of 15

1

What colour flame does Lithium burn with?

Select one of the following:

  • Yellow-orange

  • Lilac

  • Brick-red

  • Crimson-red

Explanation

Question 2 of 15

1

You can test for sulphates with Hydrochloric Acid and Silver Nitrate

Select one of the following:

  • True
  • False

Explanation

Question 3 of 15

1

You add Sodium Hydroxide (NaOH) to an unknown solution and a reddish-brown precipitate is formed. What metal ion was in the solution?

Select one of the following:

  • Copper

  • Iron (II)

  • Iron (III)

  • Calcium

Explanation

Question 4 of 15

1

To test for Oxygen, you put a glowing splint into a test tube of Oxygen and it relights the splint

Select one of the following:

  • True
  • False

Explanation

Question 5 of 15

1

Ammonia turns damp blue litmus paper blue

Select one of the following:

  • True
  • False

Explanation

Question 6 of 15

1

You have an unknown sample. When you do the flame test, you get a lilac flame and when you add Nitric Acid and Silver Nitrate to it, a cream precipitate is formed. What is the name of the sample?

Select one of the following:

  • Potassium Bromide

  • Sodium Iodide

  • Calcium Iodide

  • Calcium Chloride

Explanation

Question 7 of 15

1

You have an unknown sample. When you add Sodium Hydroxide and Ammonia, a blue precipitate is formed and when you add Hydrochloric Acid and Barium Chloride to it, a white precipitate is formed. What is the name of the sample?

Select one of the following:

  • Iron (II) Chloride

  • Copper Sulphate

  • Lithium Bromide

  • Iron (III) Iodide

Explanation

Question 8 of 15

1

Before doing a flame test, you must dip the loop of platinum wire that you will use in Nitric Acid

Select one of the following:

  • True
  • False

Explanation

Question 9 of 15

1

To test for Hydrogen, you...

Select one of the following:

  • Put a glowing splint in the test tube and hydrogen relights it

  • Put a lit splint in the test tube and the flame goes out

  • Put a lit splint in the test tube and a 'squeaky pop' sound is heard

  • It turns red litmus paper blue

Explanation

Question 10 of 15

1

Hydrochloric Acid can cause some samples to release a gas, which turns limewater cloudy. What is the anion in the sample?

Select one of the following:

  • Chloride

  • Sulphate

  • Carbonate

  • Hydroxide

Explanation

Question 11 of 15

1

Cations are negative ions

Select one of the following:

  • True
  • False

Explanation

Question 12 of 15

1

If you add water to Anhydrous Copper (II) Sulphate, what colour do the crystals turn?

Select one of the following:

  • Blue

  • White

  • Cream

  • No colour change can be seen

Explanation

Question 13 of 15

1

A bromide ion forms a yellow precipitate when you add Nitric acid and Silver Nitrate

Select one of the following:

  • True
  • False

Explanation

Question 14 of 15

1

Chlorine bleaches damp litmus paper, turning it white

Select one of the following:

  • True
  • False

Explanation

Question 15 of 15

1

A flame test is conducted to identify an unknown cation. It turns out to be Calcium. What colour was the flame?

Select one of the following:

  • Dark red

  • Brick-red

  • Crimson-red

  • Lilac

Explanation