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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Pure Substances (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Pure Substances' from the broader topic Chemical Analysis. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which colour is produced in a flame test for sodium ions?
Which test result would distinguish a covalent molecular compound from an ionic compound?
Which statement correctly describes why an instrumental technique is often preferred over a simple spot test in chemical analysis?
What is the immediate observable result when silver nitrate solution is added to an acidified solution that contains chloride ions?
Which observation is the best indicator that a solid sample is a pure substance rather than a mixture?
Which result shows that a solid sample contains carbonate ions when treated with dilute acid?
Which indicator and colour change is suitable when titrating a strong acid with a strong base?
Which single step is essential to obtain pure dry crystals from a salt solution after dissolving and filtering?
When performing a qualitative test for chloride ions, why is the sample acidified with dilute nitric acid before adding silver nitrate?
Which precipitate colour indicates a bromide ion when an aqueous sample is treated with silver nitrate?
Which test result indicates the presence of ammonia gas?