AQA Chemistry C3 Quiz

This quiz will cover all of C3.  I will be adding questions as I go!

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  • Created by: Josh
  • Created on: 08-05-11 09:32
[Water and Solubility] Which two ions present in 'hard water' cause its 'hardness'?
Ca 2+ and Mg 2+
1 of 17
[Water and Solubility] A domestic water softener usually contains ions of which element?
Na
2 of 17
[Water and Solubility] Why is thermal pollution dangerous to aquatic fauna?
Because the heat reduces the amount of oxygen that can be dissolved in the water - this means the aquatic creatures can get less oxygen.
3 of 17
[Analysis] Which colour flame would be produced by Mg when it is burnt?
No colour
4 of 17
[Analysis] What would happen if I added NaOH to a solution of a compound containing Cu 2+ ions?
A light blue precipitate would form.
5 of 17
[Analysis] How would I detect NH4 + ions in solution?
Add NaOH > Warm gently > Gas turns damp red litmus blue
6 of 17
[Analysis] I add NaOH to a solution containing X ions. A white precipitate forms. When I continue adding NaOH, nothing happens. What could X be?
Mg 2+ OR Ca 2+
7 of 17
[Analysis] I add acidified BaCl to a solution containing SO4 2- ions. What happens?
A white precipitate forms.
8 of 17
[Analysis] I add NaOH to a solution containing NO3 - ions and warm it gently. What happens?
Nothing.
9 of 17
[Analysis] What happens when a halide solution (e.g: Br, I) is added to an unsaturated hydrocarbon?
Decolorisation.
10 of 17
[Analysis] What is the modern definition of an organic compound?
A compound based on the element C.
11 of 17
[Analysis] You are provided with a solution of chemical Y, an ionic compound. When NaOH is added to it, a reddish brown precipitate forms. When acidified AgNO is added, a cream precipitate forms. What is Y?
FeBr3
12 of 17
[Analysis] Chemical T is a carbohydrate. Exactly 4.08g of T is burnt, completely, in oxygen. 3.6g of water and 8.8g of carbon dioxide are produced. What is the empirical formula of T?
C5 H10 O2
13 of 17
[Analysis] Atomic Absorption Spectroscopy (AAS) is used for what?
The identification and quantification of a particular element within a sample.
14 of 17
[Analysis] Gel-permeation chromatography is used to...
Separate compounds according to the sizes of their molecules.
15 of 17
[Water and Solubility] Covalent compounds are usually more soluble than ionic compounds. True or false?
False
16 of 17
[Water and Solubility] What is a saturated solution?
A solution in which no more solute can be dissolved.
17 of 17

Other cards in this set

Card 2

Front

[Water and Solubility] A domestic water softener usually contains ions of which element?

Back

Na

Card 3

Front

[Water and Solubility] Why is thermal pollution dangerous to aquatic fauna?

Back

Preview of the front of card 3

Card 4

Front

[Analysis] Which colour flame would be produced by Mg when it is burnt?

Back

Preview of the front of card 4

Card 5

Front

[Analysis] What would happen if I added NaOH to a solution of a compound containing Cu 2+ ions?

Back

Preview of the front of card 5
View more cards

Comments

nush

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Very very good :) 5/5

Josh

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Thanks :)

rubani

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v helpful 

rubani

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v helpful 

rubani

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v helpful 

rubani

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v helpful 

Hannah

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6 wrong!

GeorgeHarnett

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v helpful

theresa thomas

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