REACTIVITY SERIES [Only a part is included here, if you need the full version please email to me.]
I have included a few variations of the same question and same answer and you might wonder why? Let me give you an example in cricket do you think a batsman has to face the same type of balling all the time? It is the same bowler but always variations in balling. The aim is to get the batsman out or give a chance to score then get him out later. Similarly you can have the same question but always put in different forms. If you need to score marks you must be prepared like an expert batsman to face every kind of balling. So now you know why I had similar questions and answers, be prepared.
It doesn’t matter which GCSE syllabus is, AQA, OCR, Edexcel, London, Scotland, Ireland or Sri Lankan, they need to ask some questions from this section as well because this is an important part of the syllabus. I have a student from Florida and I found that he also has a similar syllabus to England GCSE. So let me send some work common to any such chemistry syllabus.
Q: What is reactivity series?
A: The reactivity series is a series of metals , in order of reactivity from highest to lowest. In the series not only the metals but non metals such as hydrogen and carbon are also included.
Q: What conclusions can be derived by the reactivity series?
A: The elements at the top end of the series react faster than the ones at the end and it enables us to find out the reactivity of the elements with water, oxygen and dilute acids. The formation of the positive ions of the elements decreases down the series.
Q: Give an example of displacing metals from the reactivity series.
A: Any metals at the top of the series can displace any metal below the series but not anything above for example,
2 Na (s) + 2 H 2 O (l) → 2 NaOH (aq) + H 2 (g)
Q: What is the reactivity of the metals at the top of the series with water? [This is just a part of the reactivity series. If you need more please request by email so that I can put in a CD and post it to you.]