C2 quiz

10jonty.bird
Quiz by 10jonty.bird, updated more than 1 year ago
10jonty.bird
Created by 10jonty.bird about 6 years ago
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C2 quiz

Resource summary

Question 1

Question
Alkali metals react with non-metals to form __________.
Answer
  • Noble gases
  • Acids
  • Macromolecules
  • Hydroxides
  • Ionic compounds
  • Insoluble Bases
  • Hydrogen

Question 2

Question
Ionic compounds are held together by ___________.
Answer
  • Strong ionic bonds
  • Strong intermolecular forces
  • Very strong Covalent Bonds
  • Delocalised electrons
  • Strong Electrostatic forces

Question 3

Question
Ionic bonds dissolve in water.
Answer
  • True
  • False

Question 4

Question
When atoms share electrons they form __________.
Answer
  • Ionic bonds
  • Covalent bonds
  • Strong intermolecular forces
  • Electrostatic forces
  • Macromolecules

Question 5

Question
Simple molecules do not conduct electricity because . . . .
Answer
  • They have delocalised electrons.
  • The intermolecular forces are too weak.
  • The molecules have no overall charge.
  • There are no layers.
  • They are too large.

Question 6

Question
When melted ionic compounds conduct electricity.
Answer
  • True
  • False

Question 7

Question
What function of Nitinol makes it particularly useful in braces.
Answer
  • It is a shape memory alloy.
  • It is not broken down by saliva.
  • It can be controlled by remote as to where the teeth move.
  • It is very hard so the teeth cannot move.

Question 8

Question
Not really a proper question just useful info in the explanation. RAM stand for Relative Molecular mass
Answer
  • True
  • False

Question 9

Question
Gas chromatography uses ________, to help identify the substance.
Answer
  • The speed of the substance in column
  • The time taken to travel through the column
  • The size of the substance
  • The mass of the substance
  • The number of substances

Question 10

Question
The gas chromatography column can be linked to a(n) __________, to identify the substances leaving the column.
Answer
  • Microscope
  • Oscilloscope
  • Set of accurate scales
  • Mass spectrometer

Question 11

Question
Soluble salts can be made from:
Answer
  • Halogens
  • Metals
  • Acids
  • Insoluble bases
  • Oxygen
  • Alkalis
  • Water

Question 12

Question
Insoluble salts can be made by mixing appropriate solutions of _______ so that a(n) __________ is formed.
Answer
  • Acid(s)
  • Bases(s)
  • Hydroxide(s)
  • Alkali(s)
  • Precipitate
  • Gas
  • Ions
  • sodium hydroxide

Question 13

Question
Alkalis: (tick the correct statements)
Answer
  • Have a pH lower than 7
  • Turn UI green, blue and red.
  • Are also known as insoluble bases
  • Are also known as soluble hydroxides
  • Are also known as insoluble hydroxides
  • Can come in the form metal oxides

Question 14

Question
At the negative electrode, positively charged ions ________ electrons, this is known as _________.
Answer
  • Gain
  • Lose
  • Create
  • Neutralisation
  • Oxidation
  • Reduction

Question 15

Question
At the positive electrode, _________ charged ions _______ electrons, this is known as _________.
Answer
  • Negatively
  • Positively
  • Gain
  • Lose
  • Neither decrease nor increase electrons
  • Oxidisation
  • Reduction
  • Neutralisation

Question 16

Question
In electrolysis the positive electrode is usually made of ____________
Answer
  • Francium
  • Steel
  • Copper
  • Boron
  • Iron
  • Carbon
  • Charcoal
  • Plastic
  • Wood
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