Guide to chemistry Practicals |Questions and Answers to selected Necta practicals 1990 – 2006| A-Level Chemistry Practical| Practical Manual Chemistry| Questions and Answers Necta Practical| Necta Practical Pdf File| Practical Secondary  School

Introduction     

 

The purpose of this booklet is to guide A-level chemistry students through the questions that are likely to appear on NECTA Paper 3, the practical paper.  This booklet is not a replacement for the actual practical; it is very important that students are able to perform the practical on their own, and have lots of practice with experimental procedures and data collection.  Instead, this booklet is meant to help students with the calculations and questions that come after the data has been collected.  

 

How to use this booklet

The first part of this booklet contains 15 practical questions, all of them from past NECTA exams.  The questions are written exactly as they are written on the NECTA exams.  As you read the procedure, imagine that you are performing the experiment yourself.  Ask yourself: What colour change should I see?  What compound is in the pipette?  Which is in the burette?  What is the reaction that is taking place now?

 

 

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After a question, experimental data is provided.  It is filled into the results tables in the same way that a student would write the data if he or she were doing the experiment.

Now the student should use the provided data to perform any necessary calculations, draw graphs if necessary, and answer the questions.  Sample calculations, graphs, and answers are provided at the end of the booklet.  Students should attempt the calculations on their own before looking at the answers, however.