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A level Chemistry OCR Salters B 2014 Past Paper

Alex Lyes 11 preguntas 5,0 (1 valoración)

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Preguntas del test (11)

  1. 1The process used to separate individual groups of hydrocarbons in crude oil is called [blank_start]fractional distillation[blank_end].
    1. Afractional distillation
  2. 2What is a structural isomer?
    1. ADifferent molecular formula but same structural formula
    2. BSame molecular formula but different structural formula
    3. CDifferent molecular formula and different structural formula
  3. 3Balance the equation
    SO2 + [blank_start]2[blank_end]H2O + O2 -> [blank_start]2[blank_end]H2SO4
    1. A1
    2. B2
    3. C3
    4. D4
    5. E2
    6. F1
    7. G3
    8. H4
  4. 4CO2 is a [blank_start]linear[blank_end] molecule because there are [blank_start]2[blank_end] groups of electrons on both sides of the C atom. They [blank_start]repel[blank_end] each other so they are as [blank_start]far apart[blank_end] from each other as possible. The bond angle is [blank_start]120°[blank_end].
    1. Alinear
    2. Bbent
    3. Ctetrahedral
    4. D2
    5. E3
    6. F4
    7. Grepel
    8. Hfar apart
    9. Iclose
    10. J120°
    11. K109.5°
    12. L180°
  5. 5[blank_start]An advantage[blank_end] of nuclear energy compared to fossil fuels is that no CO2 is produced. [blank_start]A disadvantage[blank_end] is the radoiactive waste.
    1. AAn advantage
    2. BA disadvantage
  6. 6Carbon has [blank_start]covalent[blank_end] bonding and has a [blank_start]giant[blank_end] structure. Sulfur has [blank_start]covalent[blank_end] bonding and has a [blank_start]simple molecular[blank_end] structure.
    1. Acovalent
    2. Bgiant
    3. Ccovalent
    4. Dsimple molecular
  7. 7Bond breaking is [blank_start]endothermic[blank_end]. Bond making is [blank_start]exothermic[blank_end].
    1. Aendothermic
    2. Bexothermic
    3. Cendothermic
    4. Dexothermic
  8. 8At room temp, iodine is a grey [blank_start]solid[blank_end].
    1. Asolid
  9. 9Propanone is made from the alcohol, [blank_start]propan-2-ol[blank_end].
    1. Apropan-2-ol
  10. 10In dynamic equilibrium, the rate of the forward reaction is [blank_start]the same as[blank_end] the backward reaction and the concentrations [blank_start]remain constant[blank_end].
    1. Athe same as
    2. Bgreater than
    3. Cless than
    4. Dremain constant
    5. Ealter

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Descripción
A selection of questions based from the 2014 past paper.
Idioma
English
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