Test
C2
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Preguntas del test (28)
1Select the substances which are giant 3D molecules
- ADiamond
- BSillicon Dioxide
- CGraphite
- DGraphene
- ECoal
2Plastics all have the same properties because they are all made by polymerisation.
- AVerdadero
- BFalso
3How big is a human hair?
- A80000nm
- B80000mm
- C8000nm
- D8000mm
4Complete the formula for Magnesium Carbonate
Mg- ACO2
- BCO3
- CCO
5NH4+ is more commonly known as...
- AAmmonia
- BAmmonium
- CNitro-tetra-hydride
- DHydrogen-nitride
6Gas chromatography can be used to identify gases.
- AVerdadero
- BFalso
7The electronic structure of chlorine is...
- A2,8,8,7
- B2,7
- C2,8,7
- D4,4,4,4,1
- E8,8,1
- F2,4,4,4,3
8What is a mole?
- AA specific mass of an element.
- BA specific number of particles.
- CThe number of different molecules in an equation.
- DA small furry blind rodent.
9Covalent bonds contain shared pairs of electrons.
- AVerdadero
- BFalso
10In electrolysis, the cation is...
- AThe most reactive ion.
- BThe positive ion.
- CThe highest powered electrode.
- DThe positive electrode.
- EThe negative ion.
- FThe negative electrode.
11What name do we give to a substance that can be separated using electricity?
- AElectrolysis.
- BElectrolyte.
- CSalt
- DElectronegative
- ESolution
- FLiquid
12The raw material that is shipped in to extract aluminium is...
- ABauxite
- BAlumina
- CAluminum
- DCryolyte
- EAluminium Oxide
13What does a half equation tell you?
- AThe loss or gain of electrons from one half of the equation.
- BThe loss or gain of electrons from one specific molecule.
- CThe movement of electrons from one ionic molecule to another (This will change the charge of the ion.
14An anode is...
- AA negative ion
- BA negative electrode
- CA positive ion
- DA positive electrode
15Oxidation is _________ reduction is _________ of electrons.
- Aloss, gain
- Bgain, loss
16Acids contain H+ ions which is why we measure how strong they are using the pH scale (H stands for hydrogen).
- AVerdadero
- BFalso
17An insoluble salt formed from two liquids is known as a precipitate.
- AVerdadero
- BFalso
18Burning coal is an endothermic reaction because you have to give it energy from a flame (match/lighter) to get it to start.
- AVerdadero
- BFalso
19Why is a mass spectrometer under vacuum conditions?
- ATo reduce mass.
- BTo reduce friction.
- CTo reduce interference from air particles.
20What is the correct half equation for the hydrogen in the neutralisation of sulphuric acid using calcium carbonate?
H2SO4 + CaCO3 --> H2O + CaSO4 + CO2- AH+ + e- --> H
- BH --> H+ + e-
- C2H+ + e- --> 2H
- D2H+ + 2e- --> 2H
- EH+2 + 2e- --> 2H+
21Select all of the things that can affect the rate of reaction.
- ATemperature
- BMass
- CConcentration
- DVolume
- ESurface Area
- FPressure
- GForce
22The empirical formula is the same as the molecular formula.
- AVerdadero
- BFalso
23What is the theoretical yield?
- AThe answer you think you will get.
- BThe mass of product you make.
- CThe mass of product you should make according to the calculations.
- DThe volume of gas made by a similar reaction.
24What is the catalyst used in the Haber Process?
- ANickel
- BPlatinum
- CIron
25What does rate of reaction mean?
- AHow quickly the reaction happens.
- BHow efficient the reaction is.
- CThe frequency of successful collisions.
- DThe intensity of the gas released.
26How do you work out percentage yield?
- A(actual/theoretical) x100
- B(theoretical/actual) x100
- C(actual/theoretical) /100
- D(theoretical/actual) /100
27Select the exothermic reaction(s)
- AAmmonium nitrate + Water
- BAcid + Alkali
- CCaCO3 (+heat)
- DMagnesium + Hydrochloric acid
28What does Mr stand for?
- ARelative molecular mass
- BMolecular formula
- CMass
- DMister
Información
- Descripción
- quick quiz on different topics from C2 units for AQA gcse
- Autor
- I M Wilson
- Idioma
- English
- Visitas
- 110
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test