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Science
11th -
12thgrade
BTEC Applied Science Unit 1- Chemistry and Physics
60 questions
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- 1. Multiple ChoiceHow many neutrons does a sodium atom have? (Use the image to help you)23111234
- 2. Multiple ChoiceThe electron configuration for an atom of potassium is:1s22s22p63s23p31s22s22p63s23p61s22s22p63s23p64s11s22s22p63s23p64s2
- 3. Multiple Choice
When across a period, the atomic size decreases so the first IE ___________.
increases
decreases
constant
i am not sure
- 4. Multiple ChoiceThe ______________ yield is the maximum amount of product possible in a reaction. This determines the amount of product that should be produced in a perfect settingPercentactualstoichiometrytheoretical
- 5. Multiple ChoiceIn chemical compounds, covalent bonds form whenthe electronegativity difference between two atoms is very large.electrons are completely transferred between two metals.pairs of electrons are shared between two nonmetal atoms.two nonmetal atoms are attracted to each other by opposite charges.
- 6. Multiple Choice
Rank these in order of strength (strongest first):
van der Waals (London)
hydrogen bond
dipole-dipole attraction
dipole-dipole>hydrogen bond>vdW (London)
vdW>dipole-dipole>hydrogen bond>covalent bond
hydrogen bond>dipole-dipole>vdW
- 7. Multiple ChoiceWhat information do we look for on the periodic table if we want to examine intermolecular forces?atomic massatomic numberelectronegativityionization
- 8. Multiple ChoiceAtomic radius generally increases as we move __________.down a group and from right to left across a periodup a group and from left to right across a perioddown a group and from left to right across a periodup a group and from right to left across a period
- 9. Multiple Choice
The sum of the oxidation numbers in Na2CO3 is equivalent to
0
-2
+1
-1
- 10. Multiple ChoiceMagnesium + sulphuric acid --> ?magnesium sulfate + watermagnesium sulfate + hydrogenmagnesium chloride + hydrogenmagnesium chloride + water
- 11. Multiple Choice
As you move down the group, halogens' reactivity...
increases
decreases
doesn't change
shows no trend.
- 12. Multiple Choice
Which of these is a transition metal?
Ag
N
Al
Na
- 13. Multiple Choice
What type of wave is this?
Transverse
Longitudinal
Tidal
goodbye
- 14. Multiple Choice
What type of wave is this?
Transerve
Longone
Longitudinal
stretchy
- 15. Multiple Choice
What type of wave is sound?
Transverse
Loud
Longitudinal
echo
- 16. Multiple Choice
What is being measured here?
Amplitude
Wavelength
wave-speed
frequency
- 17. Multiple Choice
What is being measured here?
Amplitude
Wavelength
wave-speed
frequency
- 18. Multiple Choice
Which wave has the highest frequency?
red
green
blue
purple/pink
- 19. Multiple Choice
What does frequency mean?
How fast the wave travels (m/s)
How long the wave is (m)
How many waves per second (Hz)
- 20. Multiple Choice
How do you calculate wavespeed?
Frequency / wavelength
Frequency x wavelength
Wavelength / frequency
- 21. Multiple ChoiceWhat is the chemical symbol for the element Carboncaco2CCd
- 22. Multiple Choice
What type of bonding occurs between a metal and a non-metal?
Covalent
Ionic
Metallic
Hydrogen
- 23. Multiple ChoiceThis bonding involves a metal and a nonmetal.ioniccovalentsardonicmetallic
- 24. Multiple ChoiceWhat are the three types of strong chemical bonds?Metallic, Ionic and CovalentMetallic, Atomic and ElectronicIonic, Atomic and NucelonicCovalent, Metallic and Electronic
- 25. Multiple ChoiceWhich particles are involved in ionic bonding?Atoms which share delocalised electronsAtoms which share pairs of electronsOppositely charged ions
- 26. Multiple ChoiceWhich particles are involved in covalent bonding?Atoms which share delocalised electronsAtoms which share pairs of electronsOppositely charged ions
- 27. Multiple ChoiceWhich particles are involved in metallic bonding?Atoms which share delocalised electronsAtoms which share pairs of electronsOppositely charged ions
- 28. Multiple ChoiceWhich atom in an ionic bond loses electrons to become positively charged?MetalNon-metal
- 29. Multiple ChoiceWhat is the chemical formula of magnesium oxide? (Mg2+ and O2-)Mg2O2Mg2O2MgOMgO2
- 30. Multiple ChoiceWhat is the chemical formula of sodium oxide? (Na+ and O2-)NaO2NaO2Na2ONaO
- 31. Multiple ChoiceWhat is the chemical formula of Iron(II) oxide? (Fe2+ and O2-)FeOFeO2Fe2OFEO
- 32. Multiple Choice
What is the oxidation number of chlorine in HClO?
0
-1
+1
+5
- 33. Multiple ChoiceWhat is the chemical formula of iron (III) oxide? (Fe3+ and O2-)FeOFeO2Fe2O3Fe3O2
- 34. Multiple Choice
Oxidation is the _________ of electrons.
loss
gain
sharing
transfer
- 35. Multiple Choice
Reduction is the ___________ of electrons.
loss
gain
sharing
transfer
- 36. Multiple ChoiceWhich would have more atoms?1 mole of Li1 mole of Au1 mole of SiNone, all are equal
- 37. Multiple Choice
Ionisation energy is ___________.
maximum energy required to remove 1 electron from 1 mol of gaseous atom
minimum energy required to remove 1 electron from 1 mol of gaseous atom
first ionisation energy
second ionisation energy
- 38. Multiple Choice
When going down a group, the atomic size increases so the first IE __________.
increases
decreases
constant
I am not sure
- 39. Multiple Choice
Factors affecting the ionisation energy:
Atomic radius
Effective nuclear charge
Shielding effect
All of the above
- 40. Multiple ChoiceWhat explains the very high melting and boiling point of waterStrong dipole-dipole bonds between water moleculesStrong hydrogen bonds between water moleculesDispersion forces which are present in all moleculesAsymmetrical shape of the polar bonds.
- 41. Multiple ChoiceHydrogen bonding occurs when hydrogen is bonded to N, O, or F. Which of the following has hydrogen bonding?CBr4NO2H2SNH3
- 42. Multiple ChoiceDoes CH4 have hydrogen bonding?yesno
- 43. Multiple ChoiceWhich is the second strongest intermolecular force, after hydrogen bonding?dipole-dipole attractionLondon forces
- 44. Multiple ChoiceAll electromagnetic waves have the same...frequencyspeedwavelengthenergy
- 45. Multiple Choice
How often a wave occurs is the wave's
frequency
amplitude
wavelength
velocity
- 46. Multiple Choice
A mobile phone emits a microwave.
At what distance is the intensity 7.5. ( k=3)
I = k/r2
0.48
0.63
0.75
0.54
- 47. Multiple Choice
_________________ are perpendicular to the direction the waves travels
Electromagnetic waves
Longitudinal waves
Mechanical waves
Transverse waves
- 48. Multiple Choice
A wave generator with a frequency of 50 Hz produces water waves with a wavelength of 20cm.
V= freq x wavelength
10 m/s
25 m/s
100 m/s
2500 m/s
- 49. Multiple Choice
A musical note has frequency 512 Hz.
Calculate its wavelength. Speed of sound in air is 330 m/s
V=fλ
168,960
0.64m
1.55m
0.64cm
- 50. Multiple Choice
Which answer choice explains what analog means?
Electrical
Mechanical / Wind up
Data expressed as single digits usually 0 and 1
Smooth and continuous data
- 51. Multiple Choice
Which of the following answer choices explains what digital means?
Data expressed as single digits, usually 0 and 1
Smooth and continuous data
Electrical
computerized
- 52. Multiple Choice
What type of information can be sent by radio waves?
Radio
Radio and video
Cell phone and Internet data
All kinds of data
- 53. Multiple Choice
What kind a wave is pictured?
Analog wave
Digital wave
Radio wave
Microwave
- 54. Multiple Choice
What kind a wave is pictured?
Analog wave
Digital wave
Radiowave
Microwave
- 55. Multiple ChoiceThere are hundreds of _____________________________ orbiting the Earth. They carry our voices from one place to another when we call on the telephone.satellitestelephone wiressignalsspace stations
- 56. Multiple ChoiceWhich wave has the largest wavelength?ABCNone (same wavelength)
- 57. Multiple ChoiceWhich wave has the largest frequency?ABCNone (same frequency)
- 58. Multiple ChoiceWhen an electron absorbs a photon of light, it also...gains positive chargegains negative chargeincreases energy leveldecreases energy level
- 59. Multiple ChoiceWhen an electron emits a photon of light, it also...gains positive chargegains negative chargeincreases energy leveldecreases energy level
- 60. Multiple Choice
What does a wave carry from place to place?
energy
matter
people
- Answer choicesTagsAnswer choicesTags