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OCR B A Level Chemistry Elements of Life

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A-Level Chemistry Quiz on OCR B A Level Chemistry Elements of Life, created by Alex Lyes on 23/05/2016.
Alex Lyes
Quiz by Alex Lyes, updated more than 1 year ago
Alex Lyes
Created by Alex Lyes over 8 years ago
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Resource summary

Question 1

Question
Isotopes of an element have the [blank_start]same[blank_end] atomic number but [blank_start]different[blank_end] mass numbers
Answer
  • same
  • different

Question 2

Question
The relative mass is the [blank_start]average[blank_end] mass of an element compared to an atom of C-12.
Answer
  • average

Question 3

Question
A mass spectrometer measures:
Answer
  • Moles
  • Relative masses
  • Shapes of molecules

Question 4

Question
Work out the number of moles in 5.10g of Aluminium oxide.
Answer
  • 0.0500 moles
  • 5 moles
  • 0.5 moles

Question 5

Question
Percentage yeild =
Answer
  • theoretical yeild/actual yield x 100
  • actual yield/theoritical yield x 100
  • theoretical yield/actual yeild / 100

Question 6

Question
Compounds that have water molecules incorporated into them are called water of crystalisation.
Answer
  • True
  • False

Question 7

Question
Methyl orange indicators turn from [blank_start]yellow[blank_end] to [blank_start]red[blank_end] when you add acid to an alkali.
Answer
  • yellow
  • red

Question 8

Question
Phenolphthalein turns from [blank_start]red[blank_end] to [blank_start]colourless[blank_end] when you add acid to an alkali.
Answer
  • red
  • colourless

Question 9

Question
Shells further away from the nucleus have a lower energy level than the ones closer to it.
Answer
  • True
  • False

Question 10

Question
Orbitals can contain up to [blank_start]2[blank_end] electrons.
Answer
  • 2
  • 1
  • 4
  • 3

Question 11

Question
Which type of orbital is this?
Image:
869cbf91-84f5-4300-a4e9-4a02df010004.gif (image/gif)
Answer
  • S orbital
  • P orbital
  • D orbital

Question 12

Question
What type of orbital is this?
Image:
4fce0669-e7d0-4326-94a1-3bed5103cefd (image/jpeg)
Answer
  • S orbital
  • P orbital
  • D orbital

Question 13

Question
Electrons fill up the lowest energy sub-shells first.
Answer
  • True
  • False

Question 14

Question
How many electrons does a full p sub-shell contain
Answer
  • 2
  • 6
  • 3
  • 10

Question 15

Question
Ionic compounds [blank_start]conduct[blank_end] electricity when they are [blank_start]molten[blank_end] or dissolved because the ions are [blank_start]free to move[blank_end].
Answer
  • conduct
  • molten
  • free to move
  • can't conduct
  • liquid
  • solid
  • stationary
  • stuck to each other

Question 16

Question
Ionic compounds are often [blank_start]soluble[blank_end] in water.
Answer
  • soluble

Question 17

Question
In a covalent bond, the positive nuclei are attracted [blank_start]electrostatically[blank_end] to the shared electrons.
Answer
  • electrostatically
  • ionically
  • intramolecularly

Question 18

Question
Dative covalent bonds are when both electrons come from the same atom.
Answer
  • True
  • False

Question 19

Question
Giant covalent structures can conduct electricity.
Answer
  • True
  • False

Question 20

Question
[blank_start]Silicon dioxide[blank_end] is an example of a giant covalent structure.
Answer
  • Silicon dioxide
  • Sodium chloride
  • Magnesium

Question 21

Question
Metalic structures contain [blank_start]delocalised[blank_end] electrons.
Answer
  • delocalised
  • no
  • localised

Question 22

Question
What is the bond angle on a molecule containing 2 groups of paired electrons around a central atom?
Answer
  • 180
  • 109.5
  • 107
  • 120

Question 23

Question
What is the bond angle on a molecule that contains 3 groups of paired electrons and 1 group of unpaired electrons?
Answer
  • 107
  • 104.5
  • 109.5
  • 120

Question 24

Question
First ionisation enthalpy [blank_start]decreases[blank_end] down the group.
Answer
  • decreases
  • increases
  • stays the same

Question 25

Question
First ionisation enthalpy [blank_start]increases[blank_end] across a period.
Answer
  • increases
  • decreases
  • stays the same

Question 26

Question
Group 2 oxides and hydroxides are [blank_start]bases[blank_end].
Answer
  • bases
  • acidic
  • neutral

Question 27

Question
The colour of the flame test for Sodium is:
Answer
  • orange-yellow
  • crimson
  • brick red
  • green

Question 28

Question
To test for sulphates you add HCl and [blank_start]Barium chloride[blank_end] and it turns white.
Answer
  • Barium chloride

Question 29

Question
Emission spectra contain black lines on a coloured background.
Answer
  • True
  • False

Question 30

Question
Electrons [blank_start]release[blank_end] energy as they [blank_start]drop[blank_end] from a higher energy level to a lower one.
Answer
  • release
  • drop
  • take in
  • jump
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