Chemistry A-Level
observations and smells
What observations and smells means in Chemistry A-Level, as defined for AQA.
Definition of observations and smells
Check what you remember
Read the wording for your board, then hide it and explain observations and smells in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Misty white fumes of hydrogen chloride with sodium chloride, brown bromine vapour and choking sulfur dioxide with sodium bromide, and hydrogen sulfide smelling of bad eggs with sodium iodide.
Topics that use observations and smells
- Trends in properties (AQA A-Level)
Related terms
- acidifying with nitric acid
- choice of acid
- concentrated sulfuric acid
- confirmation with ammonia
- confirming a halide
- dilute and concentrated ammonia
- displacement reactions
- electronegativity down a group
Using observations and smells in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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