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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Formulations (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Formulations' from the broader topic Chemical Analysis. The test is geared towards the AQA exam board style syllabus.
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Which simple test and result identify oxygen gas?
Which detector or test is commonly used to show the presence of potassium ions in a sample?
Which analytical method is most appropriate to separate and identify components of an ink mixture on paper?
Which standard reagent is typically used as the titrant (standard solution) to determine the concentration of a dilute acid?
In paper chromatography, the Rf value of a spot is defined as:
Which chemical test and result identify chloride ions in an aqueous sample?
Which advantage is commonly cited for instrumental analysis (e.g., GC, AAS) over simple chemical spot tests?
Which statement about Rf values measured in paper chromatography is correct?
Which statement about a single spot on a well-run chromatogram is correct?
A sample solution contains 35.2 g/dm3 of sodium chloride. If the percentage by mass of sodium in NaCl is 39.3%, what is the concentration of sodium in g/dm3?
Which description best defines a “formulation” in chemistry?