Chemistry 9-1 0971: Experimental Techniques Topical Past Paper Questions
Cambridge IGCSE Chemistry 9-1 (0971) past-paper questions on Experimental Techniques, free. This topic is frequently examined across 13 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Tin is a metal that is between copper and iron in the reactivity series. The ore cassiterite contains the compound tin(IV) oxide, $ SnO_{2} $. Tin(IV) oxide is insoluble in water and reacts with dilute acids to form an aqueous solution of a salt. The ore cassiterite contains no o…
Liquid alcohols can be burned as fuels in spirit burners. The energy given out can be used to heat water in a boiling tube as shown in Fig. 4.1. Fig. 4.1 Describe how to investigate which of three liquid alcohols, ethanol, propanol and butanol, heats the water in the boiling tube…
Limes and lemons are citrus fruits which contain aqueous citric acid in their juice. Citric acid reacts with alkalis such as aqueous sodium hydroxide. Plan an investigation to find which of lime juice and lemon juice contains the most concentrated aqueous citric acid. Assume that…
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