Which JC H2 Chemistry tuition centre / tutor to choose?

Hi Friends,
 You may have found many local chemistry tuition centres and private tutors for GCE A Level H2 Chemistry. But which is the right one for you?
 Tuition centres usually have a large class size of 10-30 students. The tutors are usually experienced ex-teachers of MOE schools. Some of the best tutors have their own tuition centres. They offer good notes and comprehensive tutoring. However, there is usually no personal attention and it can be difficult to ask questions during a tuition session.
 The topics covered are chosen by the H2 Chemistry tutor and more often than not, they cover topics not yet currently done in the student's JC. Revision sessions are also planned by the tutor and the order of the sessions are inflexible. Some tutors are not so readily contactable after lessons.

 For small group tuition and individual tuition, the tutor can respond to queries and there is personal attention. The lesson can be more easily customised to the student's needs. Although the fees are a little higher than tuition centres, some students prefer a small group or individual coaching environment.

 Mr Chong's tuition is catered to small group and individual tuition. His lessons can be customisable and are designed to meet student's needs. He is also a highly experienced ex-JC Chemistry tutor.

 For more information, please contact Mr Chong at 9893-5144 or email him at chemguide8@hotmail.com

 Thank you.

Mr Chong
B.Sc(Hons) in Chemistry from NUS, PGDE


A few words about Cambridge exam papers 2015

Candidates may note that 2015 Singapore-Cambridge exam papers seemed easier than previous years' papers.

One solvent appeared in Cambridge papers in 2015 and in some prelim papers, so students may read up on solvents such as
ethane (glyme, DME)
C4H10O2 ,

formamide (DMF)
C3H7NO and

dimethyl sulfoxide (DMSO) C2H6OS

For Cambridge papers of 2015, students may like to read up on Group VII (or Group 17) chemistry, sugars (saccharides), nuclear chemistry, organic solvents and polymers.

2015 papers had a disproportionately higher weightage of marks on Group VII (Group 17) chemistry, gases and energetics. Transition metals chemistry appeared relatively little. The planning question was quite surprising as it tested on chemical equilibrium and acid-base titrations.

Students may like to look up on wikipedia on phosgene and its ability to form polymers with another monomer; students may also read up on triglycerides (fats).
Cambridge International Exam Papers of Summer and Winter 2015 are out at xtremepapers.com
You may want to look at them. Two interesting features are that Cambridge favoured a compound Benzene-1,2-diamide. 

I wonder if pyridine, C5H5N, which is a solvent and a weak base, will appear in this year or next year's exams?


This website domain name has changed. Yes, we are moving...

Hi all,

 We are moving!! The blog web address has changed from http://alevelchemistrysg.blogspot.sg to http://www.alevelchemistrysg.com

 If you key in the old address http://alevelchemistrysg.blogspot.sg, you will still be redirected to the new web address.

 The contents of the blogs remain intact.

 Thank you for your kind attention!!

Mr Chong
Chemistry tutor

Organic Chemistry - Reaction mechanism

Organic chemistry – Question on reaction mechanism

The above reaction is known as the mechanism of Kolbe reaction.
(a)    Name 2 types of reaction in the mechanism.
(b)    Write an overall equation consisting of 2 stages to represent the mechanism. Sulfuric acid is used in the last stage of the reaction.
(c)    Suggest a solvent to carry out the reaction.


A Level H2 Chemistry tuition by experienced ex-JC teacher

Struggling in your chemistry studies? Want a grade boost? Want to do well for tests and exams?
Personalized and customised A level H2  Chemistry tuition is available, taught by an ex-JC tutor, who is a NUS Honours graduate, and has 17 years of experience. Personalised and small group or individual tuition slots are available. Ad-hoc tuition (topical revision) (online or face-to-face) is also available.

Mr Chong offers :

  • Simplified teaching
  • Interesting real life applications of Chemistry
  • Purposeful and exam oriented teaching
Mr Chong is patient with struggling learners.

Please whatsapp / sms Mr Chong at 9893-5144.

Mr Chong follows the latest GCE A Level Chemistry syllabus released in 2016.

Mr Chong would appreciate that at least five days' advance notice be given for the first tuition session.

To access A level Chemistry notes and worksheets, please feel free to browse around my blog. Please use the right side-bar for navigation. Hopefully you will find something useful to aid you in your study of Chemistry.

My O and A levels Chemistry blogs have more than 400,000 pageviews. Thank you all my readers!!

Thank you!!

Testimonials from students for Chemistry tuition:

"Mr Chong explains concepts clearly and ensures that I understand them. He is always ready to help whenever I have questions for chemistry." Matthew, CJC, 2015

"Mr Chong has helped me improve my chemistry with his patient guidance and knowledge and has made me more confident for  A level Chemistry. He also takes time to explain things that are out of syllabus but are essential to understanding the question at hand." Lai Yuen, NYJC, 2015 

"Mr Chong made sure that certain examples that were out of syllabus (of higher level) were exposed to me. He always motivated me and made me want to try harder. My chemistry definitely improved under his care...." Apurv, PJC, 2014

Note : Cambridge has used some university questions from university textbooks in the recent years' exam papers.

"Very approachable teacher who makes me wanna improve and learn more!" Timothy, PJC, 2014

"He is able to convey the concepts clearly. Mr Chong is a teacher who also cares for his student holistically. Whenever I feel down, he would never fail to give constant encouragements to make me feel better. He is no doubt a dedicated teacher and puts in his utmost efforts for his students. " Terence, SRJC, 2014

Substances that teachers may prefer this year

Similar substances have appeared in recent Cambridge papers.
Do you think teachers will prefer these substances this year?

Can you spot enol-keto tautomers, anhydrides, peroxy acid, amide, epoxide, sodium superoxide? Teachers may like sodium peroxide too.

Related links to these molecules:

These heterocyclic aromatic compounds have appeared in MCQ  of 2014 exam papers.