Test
OCR AS Level Chemistry - Modules 2 & 3
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Preguntas del test (20)
1Who does the worst Yoda impression?
- AYousuf
- BNeil
- CMing
- DDr Matthews
2Complete the following definition of the first ionisation energy:
The energy required to [blank_start]remove[blank_end] one [blank_start]electron[blank_end] from each atom in [blank_start]one mole[blank_end] of [blank_start]gaseous atoms[blank_end] to form [blank_start]one mole[blank_end] of [blank_start]gaseous 1+ ions[blank_end].- Aremove
- Belectron
- Cone mole
- Dgaseous atoms
- Eone mole
- Fgaseous 1+ ions
3How many p-orbitals make up one p-subshell?
- A1
- B2
- C3
- D4
- E5
4Complete the following definition of relative atomic mass:
The average [blank_start]weighted[blank_end] mass of an atom of an [blank_start]element[blank_end] relative to [blank_start]1/12[blank_end] of the mass of a [blank_start]carbon-12[blank_end] atom.- Aweighted
- Belement
- C1/12
- Dcarbon-12
5The first ionisation energy of boron is higher than the first ionisation energy of beryllium.
- AVerdadero
- BFalso
6Complete the following processes that occur during mass spectrometry in the correct order:
Vaporisation
[blank_start]Ionisation[blank_end]
[blank_start]Acceleration[blank_end]
[blank_start]Deflection[blank_end]
[blank_start]Detection[blank_end]
Recording- AIonisation
- BAcceleration
- CDeflection
- DDetection
7Fill in the blanks:
To 2 decimal places, Avogadro's constant is [blank_start]6.02[blank_end] × [blank_start]10^23[blank_end].- A6.02
- B10^23
8Fill in the blanks:
The y-axis of a mass spectrum is the percentage abundance of an isotope. The x-axis is mass/[blank_start]charge[blank_end] ratio.- Acharge
9What is room temperature and pressure?
- A20 degrees Celsius, 101 kPa
- B25 degrees Celsius, 101 kPa
- C25 degrees Celsius, 100 kPa
- D20 degrees Celsius, 100 kPa
10What are "standard conditions"?
- A298 K, 100 kPa
- B293 K, 100 kPa
- C298 K, 101 kPa
- D293 K, 101 kPa
11Fill in the blanks to complete the Ideal Gas Equation:
p[blank_start]V[blank_end] = [blank_start]n[blank_end]R[blank_start]T[blank_end]- AV
- Bn
- CT
12In the Ideal Gas Equation, what is volume measured in?
- Adm^3
- Bm^3
- Ccm^3
- Dlitres (because Dr Matthews says that dm^3 aren't proper units)
13A C-Cl bond is polar.
- AVerdadero
- BFalso
14Fill in the blank:
The strength of London forces is primarily determined by the number of [blank_start]electrons[blank_end].- Aelectrons
15Fill in the blank:
The bond angle of the Cl-P-Cl bond in PCl_3 is [blank_start]107[blank_end] degrees.- A107
16What is the oxidation number of sulfur in Na₂S₄O₆?
- A+2.5
- B+3.5
- C+2
- D+4
- E+3
- F-2.5
- G-3
- H-4
- I-3.5
17Sort the period 3 non-metals (silicon, phosphorus, sulfur, chlorine, argon) in order of increasing boiling points:
[blank_start]Argon[blank_end], [blank_start]chlorine[blank_end], [blank_start]phosphorus[blank_end], [blank_start]sulfur[blank_end], [blank_start]silicon[blank_end]- AArgon
- Bchlorine
- Cphosphorus
- Dsulfur
- Esilicon
18What colour flame do strontium ions make when burned?
- ABrick red
- BCrimson red
- CApple green
19A homogeneous catalyst is used in the contact process.
- AVerdadero
- BFalso
20Hydrogen bonding only occurs when which atoms are bonded to hydrogen? Write them below in order of decreasing strength of the hydrogen bond (FULL words, not symbols):
[blank_start]Fluorine[blank_end], [blank_start]oxygen[blank_end], [blank_start]nitrogen[blank_end]- AFluorine
- Boxygen
- Cnitrogen
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- Chemistry FTW!
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- English
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- Historial
- Creado el 30 nov 2016 · actualizado el 1 dic 2016
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