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OCR Chemistry AS/A Level 3.1 Periodic Table Flashcards | StudBud
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OCR Chemistry AS/A Level 3.1 Periodic Table
OCR Chemistry AS/A Level 3.1 Periodic Table
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Module 3.1 quiz of OCR Chemistry A
Flashcards
53 cards
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Practice quiz
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Questions
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Answers
1
What type of forces have to be overcome to melt S?
Weak intermolecular forces between molecules
Strong forces between atoms
Strong forces between + ions and delocalised electrons
2
Across each period....
elements change from metals to non-metals
elements become more reactive
elements increase in atomic mass
all of the above
3
What type of structure is P found as?
Giant ionic
Simple molecular
Giant covalent
Giant metallic
4
Which sub-shell is the outer electron of potassium in?
2s
5s
3s
4s
5
Displacement is...
forgetting where you put something
when a less reactive species displaces a less reactive one
when a less reactive species displaces a more reactive one
when a more reactive species displaces a less reactive one
6
The delocalised electrons come from...
inner-shells
the atoms
ions
outer-shells
7
The outer electron of Br exists in which sub-shell?
3s
4p
4s
3p
8
How would you test for carbonate ions?
add strong acid and test gas with limewater
add strong acid and test gas with lit splint
test with limewater
test with lit splint
9
Which hydroxide can be used to reduce acidity of soils?
Strontium
Barium
Magnesium
Calcium
10
What type of structure is Si found as?
Simple molecular
Giant metallic
Giant covalent
Giant ionic
11
the nuclear attraction felt by an electron depends on...
nuclear charge
all of the above
electron shielding
atomic radius
12
Going down group 2, reactivity...
increases
decreases
13
a mixture of ions is called what?
a mess
a gas
a mixture
a plasma
14
Which test for anions needs to be carried out first?
carbonate
halide
sulfate
ammonium
15
When magnesium hydroxide reacts with stomach acid, what is formed?
magnesium chloride and water
magnesium oxide and water
magnesium chloride and hydrogen
magnesium chloride and oxygen
16
John Newlands had elements arranged by what in his periodic table?
Relative atomic number
Relative atomic weight
Similar properties
Number of electrons
17
Each successive element in group 7...
has a higher level of London forces between molecules
has a higher boiling point
has all of the above
has an extra shell of electrons
18
Who produced the first 'modern' chemical textbook?
Johann Wolfgang Dobereiner
John Newlands
Dmitri Mendeleev
Antoine-Laurent de Lavoisier
19
What colours are the halide precipitates of Cl, Br and I respectively?
yellow
white
white, cream, yellow
yellow, cream, white
20
What type of structure is O found as?
Giant ionic
Giant covalent
Giant metallic
Simple molecular
21
In the following reaction, which species is oxidised and which is reduced?
both oxidised
Cl oxidised Br reduced
Br oxidised Cl reduced
neither oxidised or reduced
22
Down group 7, reactivity...
decreases
stays the same
increases
23
Why does He have a large first ionisation energy?
it has a full outer shell
it's a noble gas
it's the best
it is more reactive
24
What is ionisation?
I don't know
atoms losing or gaining neutrons
atoms losing or gaining electrons
atoms losing or gaining protons
25
In graphite, each carbon atom is bonded to how many other carbon atoms?
2
4
3
1
26
The group 2 element with the highest ionisation energy is...
S
Ca
Be
Mg
27
In the following reaction, which species is oxidised and which is reduced?
Mg oxidised and Cl reduced
Mg oxidised and H reduced
H reduced and O oxidised
H oxidised and Mg reduced
28
Group 2 elements form hydroxides which are...
insoluble
acidic
alkaline
soluble
29
What type of structure is C found as?
Giant covalent
Simple molecular
Giant metallic
Giant ionic
30
Down a group, first ionisation energies...
decrease
increase
are random
stay the same
31
Magnesium hydroxide is typically found in which medicine?
antiseptics
spot cream
indigestion remedies
wart remover
32
A big jump in ionisation energy provides evidence for...
forces of attraction
ionisation
electrons
shells
33
Why do melting points increase from Na --> Al?
all of the above
ionic size decreases
ionic charge increases
delocalised electrons increases
34
which of these are properties of most metals?
malleable
all of the above
low melting points
good electrical conductors
35
In a metallic bond...
all of the above
electrons are delocalised
ions are in a fixed lattice
atoms are ionised
36
Before the periodic table, Aristotle believed the world was made up of....
water and fire
solid, liquid and gas
earth, water, air and fire
solid, water and fire
37
What type of forces have to be overcome to melt B?
Strong forces between atoms
Weak intermolecular forces between molecules
Strong forces between + ions and delocalised electrons
38
Group 1 is in which block of the periodic table?
s-block
f-block
d-block
p-block
39
The repeating pattern of trends is called...
periodic pattern
a coincidence
periodicity
periodic table
40
Disproportionation is...
redox
oxidation and reduction
oxidation and reduction of same element
oxidation and reduction in same reaction
41
the energy required to remove 1 electron from each ion in 1 mole to form 1 mole of 2+ ions...
is the third ionisation energy
is the second ionisation energy
is the first ionisation energy
is the ionisation energy
42
successive ionisation energies are higher than the one before because..
negative nuclear charge will outweigh positive
more repulsion between remaining electrons
positive nuclear charge will outweigh negative
less repulsion between remaining electrons
43
What are the products in the reaction of chlorine with water?
hydrochloric acid and chloric acid
hydrochloric acid
hydrochloric acid and chlorate acid
hydrogen chloride
44
What type of forces have to be overcome to melt Na?
Strong forces between atoms
Weak intermolecular forces between molecules
Strong forces between + ions and delocalised electrons
45
Which will have the highest first ionisation energy?
He
Li
H
Be
46
What type of structure is Li found as?
Giant metallic
Giant covalent
Giant ionic
Simple molecular
47
Elements in a group react in a similar way because...
they have the same type of orbitals
they have the same number of electrons in their outer shell
all of the above
they have similar electron configuration
48
In diamond, each carbon atom is bonded to how many other carbon atoms?
4
2
1
3
49
Is this a disproportionation reaction of Cl?
no
yes, 0 --> -1 and +5
yes, 0 --> -1 and +7
yes, 0 --> +1 and -5
50
Mendeleev was clever because...
he arranged elements with similar properties into columns
he left gaps for undiscovered elements
all of the above
he predicted properties of missing elements
51
Aluminium is in which block of the periodic table?
s-block
p-block
d-block
f-block
52
What is the oxidation number of Ca in CaO?
0
+2
-2
+1
53
What numbers are needed in front of the products to balance this equation?
6, 1, 3
5, 1, 3
4, 1, 3
5, 2, 3
