A Levels Chemistry Flashcards on Group 7 Halogens, created by Matt Storey on 26/04/2014.
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Created by Matt Storey
almost 10 years ago
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What are the 5 group 7 halogen molecules? Give a description of the first four at room temperature
What is the trend in atomic radii as we go down group 7?
What is the trend in electronegativity as we descend group 7?
What is the trend in melting point as you go down group 7?
What is the trend in oxidising ability of the group 7 elements as we go down the group?
What happens to the group seven halides in a redox reaction?
What is a displacement reaction between halogens?
Fluorine will displace bromine in a compound. True of False?
A halide will always be displaced in a compound by halogen above, or below it in the periodic table?
Halide ions cannot act as reducing agents true or false?
What compound do all sodium halides react with?
When sodium chloride reacts with sulphuric acid 1.What is observed? 2.What are the products? 3.What type of reaction occurs?
Bromine is a stronger reducing agent than chlorine and fluorine, hydrogen bromide oxidises the oxidation state of sulphur in sulphuric acid from +6 to what? And what products does the sulphur form?
Hydrogen iodide can oxidise sulphuric acid to three different oxidation states, what are these oxidation states and in what compound does sulphur have these oxidation states?
What is observed when reacting sodium iodide and sulphuric acid?
What forms when metal halides react with silver ions in aqueous solution?
Why does silver fluoride not form a precipitate?
Why is dilute nitric acid added to a halide solution before performing a silver test?
What are the distinguishing colours of each of the silver halide precipitates?
Since the colours of the silver halides are similar how can we distinguish between them using ammonia?
What products are formed when chlorine reacts with water in a reversible reaction
What is a disproportionation reaction?
What are the properties of chloric (I) acid?
What is formed when chlorine reacts with water in the presence of sunlight?
How can pools be chlorinated instead of using direct chlorination?
What forms when chlorine reacts with cold sodium hydroxide?
