How to improve in JC H2 Chem – Part 1

How to improve JC H2 Chem Many parents often ask me, “How to improve his/her JC H2 Chem?” This question is usually asked by frustrated/hapless parents. Typical scenario is that the student has studied hard but doesn’t seem to make any improvement. To which a slight probe will most likely reveal that the method of studying […]

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How to solve common redox questions

Redox Qn: Sulfur dioxide causes a colour change in acidified potassium dichromate. Given that the potassium dichromate and sulfur dioxide are present in the reacting ratio of 1:3, suggest a likely sulfur−containing product for the reaction. This is considered quite a common redox question.  Firstly, what do you need to know? And how to apply […]

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How do organic compounds achieve stability?

Important Concept for Organic Chemistry Organic Chemistry Two main ways organic compounds achieve stability: Resonance         Electrons are delocalized to form different resonance structures, which lowers the energy level of the organic compound. This contributes to stability. Dispersion of charge Carbocation is electron deficient while R groups are electron-donating. Thus the more […]

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Organic Deductive Questions

Organic Chemistry Deductive Questions – Side Reactions When you have only one C=C in the organic molecule and question says that when the compound is heated with acidified manganate (VII), 3 fragments are obtained. This means that there was actually TWO cleavage of bonds. But shouldn’t it be only two fragments since the oxidative cleavage […]

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Third Term swings into gear!

Reminder: Third Term is here. If you haven’t been putting in 100% into your studies, now’s the time to start! Remember to pace yourself though, studying late into the night makes for unproductive school day the next day. Weather’s also erratic and there’s some flu clusters around in schools. Please have at least 2L of […]

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Tips for organic deductive questions

Organic deductive questions If the organic deductive questions gives the molecular formula, see if the number of C and H is comparable. In addition, if the molecule contains more than 6 carbon atoms, the compound is likely to contain a benzene ring. Even if C and H is not comparable, the degree of unsaturation can tell us […]

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Simple tips for pattern recognition questions

Tips for pattern recognition questions Tip #1: Use your highlighter. Complicated rearrangement of atoms can be followed simply by highlighting the example given. Do the same for the question you are given and you will be able to predict the reaction product easily! Tip #2: Number the carbon chain. This tip is more for those questions […]

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3 Tips For Understanding Chemistry

Tips for Studying Chemistry Let’s face it, chemistry is not the easiest subject to master. It’s abstract concepts (think atoms and molecules) which you can’t see with your eyes. So here i will share with you all 3 tips for studying chemistry. Tip #1: Search for Youtube videos to help you visualize spatial ideas such as […]

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