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OCR B Chemistry Practical Questions
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Preguntas del test (6)
1When making an ester, conc sulphuric acid acts as a [blank_start]catalyst[blank_end].
- Acatalyst
2When reacting iodine with starch solution, the solution will go from [blank_start]blue-black[blank_end] to [blank_start]colourless[blank_end].
- Ablue-black
- Bcolourless
3When selecting which filter is complementary during colorimetry, you should use the filter that gives the [blank_start]maximum[blank_end] absorbance reading.
- Amaximum
- Bminimum
4Heating under reflux means [blank_start]boiling[blank_end] the mixture and allowing it to [blank_start]condense[blank_end] and fall back into the flask.
- Aboiling
- Bcondense
5Carbonates with a [blank_start]greater[blank_end] charge density will be less thermally stable becasue they will distort the large carbonate ion [blank_start]more[blank_end].
- Agreater
- Bsmaller
- Cmore
- Dless
6Weighing ou a larger sample will be more accurate than a smaller one becuase there is a smaller [blank_start]weighing error[blank_end].
- Aweighing error
Información
- Descripción
- A-Level Chemistry Test sobre OCR B Chemistry Practical Questions, creado por Alex Lyes el 21/06/2017.
- Autor
- Alex Lyes
- Idioma
- English
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