What are the different types of JC Chemistry tuition classes available at your centre?

We have 3 modes of learning for students to choose from: weekly physical classes at Bishan; weekly online lessons via Zoom; and on-demand video lessons.

Are you the only Chemistry tutor conducting the classes or do you engage other tutors to do that?

Please be rest assured that I conduct all my classes personally and I do not engage other tutors to teach at my centre.

How well do your students perform after attending your H2 Chemistry tuition classes?

Most of my students showed improvements by at least 3 grades and more than 80% have attained distinction for A Levels. The earlier the students join my classes, the more confident I am in improving their grades.

What is your class size at Bishan?

Usually the class size is around 10 to 12 students. Max class size is 16 pax.

Is there makeup lesson if I miss a class?

Yes makeup lesson is available in the same week subject to availability. If makeup class is not possible, the student can view the recorded video lessons at Google Classroom.

Do you have trial lesson available? How much is it?

Yes we do. Fees for trial lesson are for Bishan class and for Zoom online class.

Does your centre offer O Level chemistry tuition? Do you teach IB / IP chemistry tuition? How about H1 Chemistry?

Chemistry Guru specialises in H2 Chemistry for JC1 and JC2 or IP Year 5 and IP Year 6 students only. Find out all the information about A Level H2 Chemistry and the detailed comparison between H1 and H2 Chemistry. We do not conduct lessons for H1 Chemistry, O Level Chemistry, IB Chemistry or IP Chemistry at IP Year 3 and IP Year 4.

Compare Reactivity of Alcohol and Phenol

In phenol -OH group is directly bonded to benzene.

The lone pair of oxygen can interact with the delocalised pi system of benzene and resonance stability is extended to C-O bond.

230220 phenol resonance stabilised

This makes the C-O bond very stable and phenol does not take part in substitution and elimination reactions like alcohol.

Therefore phenol will have significantly fewer reactions compared to alcohol, since both alcohol's C-O and O-H bonds can be broken.

Let's compare the reactivity and types of reaction for alcohol and phenol.

230220 compare reactivity alcohol and phenol

For alcohols:

Types of reaction when C-O bond is broken include nucleophilic substitution and elimination.

Types of reaction when O-H bond is broken include oxidation (C-H bond is also broken), neutralisation and condensation.

For phenols:

Since C-O bond is resonance stabilised and not broken, there is no nucleophilic substitution and elimination.

O-H bond can still be broken hence phenols can take part in neutralisation and condensation reactions.

Check out this video to learn all the reactions of alcohols and phenols.

Topic: Alcohol, Organic Chemistry, A Level Chemistry, Singapore

Back to other previous Organic Chemistry Video Lessons.

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Paper 1

Compare Reactivity of Alcohol and Phenol