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.Incorrect: 0
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Question 1
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Which description best defines a formulation in chemistry?
During electrolysis of aqueous sodium chloride, which species is produced at the cathode (negative electrode)?
Which simple test distinguishes carbonate (CO3 2) from sulfate (SO4 2) in aqueous solutions?
Which simple test and result identify oxygen gas?
Which simple qualitative test identifies ammonia gas and its result?
Which statement about a single spot on a well-run chromatogram is correct?
Which change would NOT normally affect the Rf value of a dye in paper chromatography?
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 gas will turn limewater (calcium hydroxide solution) cloudy?
Which change would normally increase the Rf value of a polar dye in paper chromatography using polar water as the solvent?
Which statement about Rf values measured in paper chromatography is correct?
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