UNIT 12-GROUP 17🤎

Question 1

describe the trends in melting & boiling points, volatility and colours of group 17 elements Cl, Br and I) down the group (explain the trend in volatility in terms of vann der waals forces)

Answer 1

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Question 2

explain the trend in bond strength of these halogen molecules

Answer 2

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Question 3

describe the reactivity of group 17 elements as oxidising agents using an example equation, state a trend

Answer 3

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Question 4

describe the reactions these of halogens with hydrogen (products formed), use equations in your explanation
state the trend of thermal stability of hydrogen halides down the group (in terms of bond strengths)

Answer 4

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Question 5

describe the relative reactivity of halide ions as reducing agents

Answer 5

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Question 6

describe and explain the reaction of halide ions with aqueous silver ions then ammonia (include qualitative data)

Answer 6

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Question 7

describe the reaction of halide ions (chlorine, bromine and iodine) with concentrated sulfuric acid, use equations in your explanation

Answer 7

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Question 8

write the equations for the reactions between chlorine and sodium hydroxide in a cold and hot alkali, use the change in oxidation numbers to explain why these are disproportionation reactions

Answer 8

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Question 9

explain the use of chlorine to kill bacteria in water using an equation + an explanation

Answer 9

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