2 (a) Chlorine reacts with potassium bromide in solution to form bromine and potassium chloride. (i) What type of reaction is taking place? Put a cross (X) in the box next to your answer. A displacement B distillation C neutralisation D precipitation (ii) State the colour of the mixture at the end of the reaction. (b) Chlorine reacts with an element X to form a solid chloride. The solid chloride is dark red. Which is the most likely position of the element X in the periodic table? Put a cross (X) in the box next to your answer. A B C D

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2 (a) Chlorine reacts with potassium bromide in solution to form bromine and potassium chloride - Edexcel - GCSE Chemistry - Question 2 - 2015 - Paper 1

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2 (a) Chlorine reacts with potassium bromide in solution to form bromine and potassium chloride. (i) What type of reaction is taking place? Put a cross (X) in the b... show full transcript

Worked Solution & Example Answer:2 (a) Chlorine reacts with potassium bromide in solution to form bromine and potassium chloride - Edexcel - GCSE Chemistry - Question 2 - 2015 - Paper 1

Step 1

What type of reaction is taking place?

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Answer

The reaction between chlorine and potassium bromide is a displacement reaction. In this type of reaction, a more reactive halogen (chlorine) displaces a less reactive halogen (bromine) from its compound. Therefore, the answer is:

A displacement

Step 2

State the colour of the mixture at the end of the reaction.

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Answer

At the end of the reaction, the mixture will exhibit a yellow-green colour due to the presence of chlorine, which is responsible for generating bromine from the bromide ion.

Step 3

Which is the most likely position of the element X in the periodic table?

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Answer

Given that the solid chloride is dark red, it is likely that element X is a heavy metal from the group of elements that readily form such chlorides. Among the options provided, the most likely position of element X would be:

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