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1 (a) A chloride ion, a fluorine atom and a nanoparticle are all types of particles - Edexcel - GCSE Chemistry - Question 1 - 2020 - Paper 1
Question 1
1 (a) A chloride ion, a fluorine atom and a nanoparticle are all types of particles. Which of the following shows the particles in order of size, starting from the ... show full transcript
Worked Solution & Example Answer:1 (a) A chloride ion, a fluorine atom and a nanoparticle are all types of particles - Edexcel - GCSE Chemistry - Question 1 - 2020 - Paper 1
Step 1
Which of the following shows the particles in order of size, starting from the smallest?
Answer
The correct order of size from smallest to largest is: fluorine atom, chloride ion, nanoparticle. Therefore, the answer is D. The fluorine atom is the smallest, followed by the chloride ion, and finally the nanoparticle, which is significantly larger.
Step 2
Step 3
Explain why the anion in X cannot be known for certain.
Answer
The anion in solution X cannot be determined with certainty because a cream/yellow precipitate can indicate the presence of multiple ions. For instance, both chloride ions and bromide ions can result in similar precipitate colors with silver nitrate. Thus, without additional tests or information, it's not possible to definitively identify the specific anion present in X.