Most asked questions Archives - Mr Khemistry

Most asked questions

How to solve Organic Synthesis Question

Organic Synthesis Question In any synthesis questions, we first need to note the number of carbon atoms, is there an increase or decrease in the carbon chain? In the above question, yes the carbon chain increased from 8 to 9 carbons. This informs us that somewhere in the intermediate steps, a step-up reaction involving nitrile […]

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Tuition and Chemistry Crash Course

Frequently asked questions Q: When is it too late to go for chemistry tuition? A: There’s no deadline that says it’s too late to go for tuition. However, a good gauge would be to look at your test scores. If you consistently failed your tests and give yourself excuses, the time will come when you […]

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H2 Chemistry Tuition

H2 Chemistry Tuition Q: Why isn’t there group tuition for H1 Chemistry like for H2 Chemistry Tuition? A: Because there isn’t enough demand to form a group, so usually we try to give 1-on-1 private tuition. However, if you are able to bring along 2 more friends, we will open up a new slot for […]

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Strength of Hydrogen Bond

Strength of Hydrogen Bond Qn: Which of these compounds has the strongest hydrogen bond, HF, H2O or NH3? How do we estimate the strength of hydrogen bond? Ans: HF. Due to the largest electronegativity difference between H and F. Followed by H2O and then NH3. Qn: But then why does water have the highest boiling […]

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Common mistake in drawing hydrogen bond

Common mistakes in drawing hydrogen bond One of the most common mistakes is to write the dipole across the hydrogen bond, e.g. A dipole exists as a pair, partial positive and partial negative. It also depicts the uneven electron density distribution in a covalent bond thus it first forms in a single molecule where the hydrogen […]

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