Posted in Practical

Notes on Planning for A-Level H2 Chemistry Practicals

Purpose of These Notes

These notes cover all five types of Planning questions tested in H2 Chemistry Paper 4: Volumetric Analysis (Titration), Gravimetric Analysis, Gas Collection, Energetics, and Kinetics. For each type, you will find: what the question is testing, the exact procedural format with precision-tagged steps, a worked example using the thermometric titration question from RVHS 2024, a mark scheme, and the most common errors.

The mark annotation system used throughout: (P1) = Procedure, (P2) = Precision, (A) = Apparatus, (R) = Reliability, (Q) = Quantity.


1.2 General Rules That Apply to ALL Planning Questions
• Write your procedure in numbered steps — never continuous prose.
• Every step must name the apparatus and give the quantity to the correct precision.
• State both the initial and the final measurement for every instrument used.
• Reliability steps (repeat until consistent) must be specific — state the tolerance (e.g. ±0.10 cm³, ±0.01 g).
• Safety: name the specific chemical involved and the specific hazard it poses. Give the action to take, not the action to avoid.

⚠ Never repeat information already given in the question. Read the question stem carefully — restating given facts scores zero.

PART 2 — VOLUMETRIC ANALYSIS (TITRATION)

2.1 What is Tested

Titration questions ask you to determine an unknown concentration, basicity (number of acidic H⁺), or percentage purity. They may involve: acid-base titration, back titration, redox titration (MnO₄⁻ or iodometric), or thermometric titration. The planning always follows a three-phase structure: (i) preparation of standard solution, (ii) dilution if needed, (iii) the titration itself.

2.2  Pre-Experimental Calculation — Titre Volume

Before writing any procedure, check whether a dilution is needed. The key rule:

Key RuleTarget titre volume: 10.00 – 40.00 cm³. If concentrations differ by a factor of 10 or more, dilute first using C₁V₁ = C₂V₂. Use a 250 cm³ volumetric flask for dilution.

A titre that is too high → requires burette refill → high % error.

A titre that is too low → small volume → high % error from burette uncertainty (±0.05 cm³ per reading).

Percentage error in burette = (0.10 / titre volume) × 100%. Target ≤ 0.5%.

2.3  Indicator Selection

Choosing the wrong indicator is a common and costly error. Always match indicator to the type of titration.

2.4 The Standard Procedure — Step by Step


Phase 1: Preparation of Standard Solution (from solid)

  1. Weigh accurately about [mass to 2 d.p.] g (P2), (Q) of [name of solid] into a dry and clean (R) weighing bottle (A), (P1).
  2. Transfer the solid quantitatively into a 100 cm³ beaker (A). Reweigh the emptied weighing bottle and record its mass (P1). Calculate the actual mass transferred (P1).
  3. Add from a 50.00 cm³ (P2) burette (A), [volume to 2 d.p.] cm³ (P2) of [solvent/acid] to dissolve the solid. Swirl until fully dissolved (R), (P1).
  4. Transfer the solution and all washings into a 250 cm³ volumetric flask (A). Make up to the mark with deionised water (P1).
  5. Stopper and shake the flask and mix thoroughly to obtain a homogeneous solution (P1).

⚠ Always reweigh the emptied weighing bottle — this gives the actual mass transferred. Do NOT weigh into the volumetric flask directly.

Phase 2: The Titration

  1. Pipette 25.0 cm³ (P2), (Q) of [analyte solution] into a 250 cm³ conical flask (A), (P1).
  2. Add 2–3 drops of indicator name into the conical flask.
  3. Fill a 50.00 cm³ burette (A) with [titrant solution] and record the initial burette reading to 2 d.p. (P1), (P2).
  4. Titrate [titrant] against [analyte]. Add dropwise near the endpoint. Swirl the flask continuously (R). Stop when the solution changes from [colour A] to [colour B] and the colour persists for 30 s (P1).
  5. Record the final burette reading and calculate the titre (P1). Repeat until two titre values are consistent within ±0.10 cm³ (R). Use the mean of the consistent readings (P1).

The full set of Planning notes is available in hard copy for students who sign up for any of our regular practical lessons, Crash Courses or Mock Exams.


Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.


Why Choose Us?

  • Our teachers are very experienced, and we actually TEACH you good practical techniques.
  • We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
  • Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.
  • We have a structured practical training programme catering to the needs of both beginners and experienced students.
  • We have a small class size so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.
  • Many private schools trust us to prepare and conduct science practical training and assessment for their students, including structured training, mock exams and even actual CIE science practical exams.

Our Main Practical Programmes:

A-LEVEL H2 PRACTICALS (Available Nov to Oct)

O-LEVEL PRACTICALS (Available Nov to Oct)

PRACTICAL CRASH COURSES (Jun, July, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Apr to Oct)

Posted in Practical

Notes on Sources of Error in A-Level H2 Chemistry Practicals

1. Answering a Source-of-Error Question

To get the mark for a sources-of-error question, give the one or two factors inherent to the procedure, not a general list.

Every answer has three parts: (i) the specific step and the chemical or physical reason the recorded quantity deviates from the true value; (ii) the quantity affected, stated as too high, too low, or inconsistent, and where relevant, how this propagates through the calculation (a rate constant, an enthalpy change, a Faraday constant); (iii) a concrete precaution, with the reasoning where this is not obvious.

State the effect on the quantity actually recorded, not on the underlying chemistry. At H2 level, examiners further expect the answer to engage with how the error enters the calculation — whether it biases a gradient, an intercept, or a value substituted directly into a formula.

Rejected as “too general” unless further justified for the exact procedure:

  • Parallax error, without stating which scale and why it cannot be avoided here.
  • “Human error” or “random error”, without a stated cause.
  • Zero error — correctable by taring or calibration, not a genuine source of error.
  • “Apparatus not accurate enough”, without naming the reading it limits and the resulting effect on the calculated quantity.
  • Anything solved by “being more careful” or “repeating the reading” — most sources examined at H2 level are systematic and are not removed by repetition.

1.1 Random and Systematic Error

Source of ErrorEffect on the Reading / ResultPrecaution / Improvement
Random errorScatter in either direction from the limit of instrument resolution or from inexact repetition — e.g. concordant titre volumes that still differ by up to 0.10 cm³.Repeat until titres are concordant (within 0.10 cm³) and average these; take multiple absorbance/conductivity readings and average; use the gradient of a best-fit line over single data points.
Systematic errorA constant bias in one direction throughout the experiment — e.g. heat loss to the surroundings in every calorimetry run, or a side reaction consuming part of a fixed current in electrolysis.Not reduced by repetition. Identify and correct the fault (insulate, use a control, correct for a side reaction), or choose what is plotted so the constant bias is confined to an intercept rather than a gradient.

1.2 Precision of Common H2 Chemistry Apparatus

ApparatusPrecision (Uncertainty)How to Read / Use Correctly
Burette± 0.05 cm³ (read to 2 d.p.)Read the meniscus at eye level; for deeply coloured titrants (e.g. iodine, potassium manganate(VII)), read the top of the meniscus.
Pipette (25.0 cm³ / 20.0 cm³)Fixed volume, delivered “to deliver”Allow to drain fully; touch the tip against the vessel wall; do not force the last drop out unless the pipette is graduated for it.
Electronic (top-pan) balance± 0.001 g to ± 0.01 g, model-dependentTare before each measurement; weigh by difference where possible, so any zero drift cancels.
Digital stopwatch± 0.01 s (device); human reaction time ≈ 0.2–0.3 s dominatesTrigger against a clearly defined cue (colour change, needle deflection); for a fast reaction, use continuous monitoring (colorimeter, gas syringe, pressure sensor) instead.
Colorimeter / UV-visible spectrophotometer± the last displayed digit of absorbance; also sensitive to cuvette handlingZero against a blank/reference solution before each run; handle cuvettes only by the ribbed sides, keeping optical faces clean and free of fingerprints.
pH meter / data logger± 0.01 pH unit (device); response time and calibration drift are larger sources of errorCalibrate with fresh buffer solutions immediately before use; allow the reading to stabilise before recording; rinse and blot the electrode between solutions.
Thermometer / temperature probe± 0.1 °C (probe); ± 0.5 °C (liquid-in-glass)Keep the sensor fully immersed and away from the vessel wall; allow thermal equilibrium before reading.
Gas syringe± 0.5 cm³, with plunger friction as an added source of lagCheck the plunger moves freely before use; keep the syringe horizontal and unobstructed.
Ammeter (electrolysis circuit)± the last displayed digit; also affected by drift in current over timeUse a variable resistor or rheostat to hold current constant; take ammeter readings at regular intervals and use the mean, or integrate current over time if it is not constant.

2. Volumetric Analysis

2.1 Preparation of a Standard Solution

n = m / M; the accuracy of every subsequent titration calculation depends on this concentration being correct.

Source of ErrorEffect on the Reading / ResultPrecaution / Improvement
Solid is not completely transferred from the weighing bottle/boat into the volumetric flask, or washings from the funnel and beaker are not added.Moles of solute actually in the flask is lower than the mass weighed implies, so the concentration prepared is lower than intended, biasing every titre calculated from it.Rinse the weighing bottle, funnel, and beaker several times with distilled water, adding all washings to the volumetric flask, before making up to the mark.
The flask is made up to the graduation mark with the meniscus viewed from above or below eye level, or is topped up past the mark.The true volume of solution differs from the flask’s stated volume, so the concentration calculated (moles / stated volume) does not match the true concentration.Add water dropwise near the mark with a dropping pipette, viewing the meniscus at eye level; discard and remake the solution if the mark is overshot.
The solution is not mixed thoroughly (inverted repeatedly with the stopper in place) after topping up.Concentration is not uniform throughout the flask, so aliquots withdrawn from different parts of it give inconsistent titres.Stopper the flask and invert it several times to ensure the solution is homogeneous before withdrawing any aliquot.

2.2 Acid–Base and Redox Titrations

n(analyte) = n(titrant) × mole ratio, from the stoichiometric equation; back titration finds excess unreacted reagent by titrating it against a second standard solution.

Source of ErrorEffect on the Reading / ResultPrecaution / Improvement
In an iodine–thiosulfate titration, starch indicator is added too early, while the iodine concentration is still high.Starch forms a strong iodine–starch complex that releases iodine only slowly, causing the end-point (loss of blue-black colour) to be over-run — titre recorded is too high.Add starch only when the solution has faded to a pale straw-yellow colour, close to the expected end-point, then continue titrating dropwise to the colourless end-point.
A back titration’s excess reagent is not accurately known — the volume/mass of excess-reagent solution added initially was not measured precisely, or the reaction with the analyte was incomplete before titrating the excess.The moles of reagent that reacted with the analyte (found by difference) carries forward the combined imprecision of both the initial addition and the second titration — the analyte’s calculated amount is inconsistent.Add the initial reagent by pipette or accurately prepared standard solution, and allow sufficient time (or gentle heating) for the first reaction to go to completion before titrating the unreacted excess.
Potassium manganate(VII), a self-indicating titrant, is used past its own colour fading point (solution is not swirled sufficiently near the end-point, so a local excess appears reacted).The end-point (first permanent trace of pink) is over-run in some regions of the flask while under-run in others — titre recorded is inconsistent between repeats.Swirl the conical flask continuously and add titrant dropwise near the expected end-point, until one drop causes a permanent, uniformly distributed, faint pink colour.
The reaction between titrant and analyte is slow at room temperature (e.g. some redox titrations), so the colour change appears to fade back after the recorded end-point.The volume recorded at the apparent end-point is too low, since the reaction had not yet reached completion.Warm the analyte solution gently (where the reaction permits, e.g. acidified oxalate–manganate(VII) titrations) to increase the rate, and titrate slowly near the end-point, allowing time for each addition to react fully.
A dichromate(VI) titration is carried out with no added indicator, on the mistaken assumption (true only of manganate(VII)) that the titrant is self-indicating.Dichromate(VI) and its reduced Cr³⁺ product are both coloured but do not give a sharp visual end-point on their own, so the end-point is missed or badly over-run.Add a redox indicator suited to the Cr⁶⁺/Cr³⁺ couple (e.g. a diphenylamine-based indicator), whose distinct colour change marks the end-point.

2.3 pH Titration Curves and Buffers

pH is monitored continuously as titrant is added; for a weak acid, pKa is read from the pH at the half-equivalence point.

Source of ErrorEffect on the Reading / ResultPrecaution / Improvement
The pH probe is not calibrated with fresh buffer solutions immediately before the titration, or calibration drifts over a long run.Every pH value recorded (and hence the pKa read from the curve) is offset from the true value by a roughly constant amount.Calibrate with two buffer solutions bracketing the expected pH range immediately before starting, and recalibrate if the titration is lengthy.
Titrant is added in large, evenly spaced volume increments throughout, including near the steep equivalence-point region.The equivalence point (steepest gradient) and half-equivalence point are poorly located, since few readings fall within the narrow volume range where pH changes fastest.Add titrant in small increments (e.g. 0.5 cm³) near the expected equivalence point; larger increments are acceptable elsewhere, so the curve is well-defined where it changes fastest.
The probe is rinsed insufficiently, or not rinsed at all, before being placed in a new solution.Contamination carried over from the previous solution biases early pH readings in the new titration.Rinse the electrode with distilled water and blot (do not rub) dry before each new titration or measurement.

The full set of notes, which includes more sections on Sources of Error by Practical Topic is available in hard copy for students who sign up for any of our regular practical lessons, Crash Courses or Mock Exams.


LOOKING FOR THE BEST PLACE TO DO YOUR SCIENCE PRACTICALS? JOIN US!

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.


Why Choose Us?

  • Our teachers are very experienced, and we actually TEACH you good practical techniques.
  • We have been a one-stop comprehensive science practical centre providing solid practical training for ALL THREE sciences and for all levels and streams since 2017.
  • Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.
  • We have a structured practical training programme catering to the needs of both beginners and experienced students.
  • We have a small class size so that the teacher is able to observe the actions of each student more closely and demonstrate the correct practical techniques where and when necessary.
  • Many private schools trust us to prepare and conduct science practical training and assessment for their students, including structured training, mock exams and even actual CIE science practical exams.

Our Main Practical Programmes:

A-LEVEL H2 PRACTICALS (Available Nov to Oct)

O-LEVEL PRACTICALS (Available Nov to Oct)

PRACTICAL CRASH COURSES (Jun, July, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Apr to Oct)

Posted in Practical

H2 CHEMISTRY HANDS-ON PRACTICAL CRASH COURSE

Singapore Learner has been a Comprehensive Science Practical Training provider since 2017.

As at 19 Apr 2026, we have trained about 1060 students for their science practical exams and we have conducted a total of about 4044 lab sessions.

Our laboratory apparatus are exam-grade and similar to those used in MOE schools and our chemicals are all NEA-approved.


We have two kinds of crash courses: BASIC and REVISION.

BASIC CRASH COURSE – for beginners or students who have been out of touch with science practicals. Features: slower pace of teaching, more teacher demonstrations and hand-holding. Focus is on how to set up the apparatus, using instruments correctly, recording, tabling and graphing.

REVISION CRASH COURSE – for students who need a refresher course or guided extra practice for science practicals, such as retakers, government school students or graduates of our Basic Crash Course. Features:  Quick recap on how to use instruments correctly, and what examiners look for in students’ recordings, tables and graphs. More discussions on sources of error, important topics, difficult experiments and Planning (if applicable).

The two courses above consist of different experiments, thus students may attend both the Basic and Revision crash courses, followed by mock exams if needed.


Topics: Volumetric Analysis, Gravimetric Analysis, Kinetics, Qualitative Analysis (Organic & Inorganic)

 

Skills and Content for Volumetric Analysis: Revision on proper rinsing and usage of burette, pipette and volumetric flasks; Tabling and correct recording of data; Mole calculations; Sources of error and how these affect the final answer; Hands-on practice on a selected Titration topic. Revision on Iodimetric Titration, Redox Titration, Double-Indicator Titration and Thermometric Titration.

Skills and Content for Gravimetric AnalysisHands-on practice on a selected Gravimetric Analysis experiment.

Skills and Content for Kinetics: Revision on Order of Reaction and Rate of Reaction.

Skills and Content for QA (Organic & Inorganic): Revision on proper techniques for testing of Cations, Gases and Anions; Common mistakes in QA and how to avoid them in order to maximise your marks; Correct recording of observations and conclusions. Hands-on practice on testing of Ammonia gas, Carbon Dioxide gas, Hydrogen gas, and some common cations and anions.


 

Location: Singapore Learner @ Bukit Batok, Blk 644, Bukit Batok Central, #01-68. S(650644).

Booking is by full payment only. Kindly send a message to +(65) 88765498 (WHATSAPP) for payment info. Thank you.


Tel: +(65) 6569 4897,   +(65) 88765498 (WHATSAPP)

Email:  principal@singaporelearner.com

If you wish to visit us, kindly call or sms first. Thank you.


For Standard Practical Training, click here:

A-LEVEL H2 PRACTICALS

For Practical Mock Exam, click here:

MOCK EXAMS FOR SCIENCE PRACTICAL (Sep & Oct)

OTHER PRACTICAL CRASH COURSES (Mar, Jun, Sep and Oct)

 

Posted in H2 Chemistry, Practical

H2 CHEMISTRY PRACTICAL TRAINING 1 (TITRATION)

Dear J2 (2021), Y5 IP (2021), Y6 IP (2021) students. Our centre will be conducting a H2 Chemistry Practical training session on Fri, 18 Dec 2020 from 3pm-5.30pm. Focus is on Titration and there will be 2 different titration qns taken from past prelim papers, one using KMnO4 and the other using starch indicator. Fee is $280 (usual $320) and must pay by 15/12 to book session and confirm attendance.

Additional Practical Slots: Mon 21/12 2.30pm-5pm, Tue 22/12 2.30pm-5pm and Thur 24/12 2.30pm-5pm. (Must book and pay in advance)

Location: Blk 644, Bukit Batok Central, #01-68. S(650644).

To book this session, (1) Msg your Full Name to 88765498 and (2) Make payment of $280 via Paynow or Paylah to 97860411 BY TUES 15 DEC 2020.

For enquiries, pls contact 6569 4897 or 88765498 http://wa.link/w0xxk2


Singapore Learner @ Bukit Batok

Blk 644, Bukit Batok Central, #01-68. S(650644).

Tel: +(65) 6569 4897,   +(65) 88765498 (WHATAPPS)

Email:  principal@singaporelearner.com

If you wish to visit us, kindly call or sms first. Thank you.

 

Posted in h2 chem, Practical

HANDS-ON H2 CHEMISTRY PRACTICAL REVISION

MOE/SEAB SYLLABUS FOR H2 CHEMISTRY PRACTICAL

Paper 4 (Practical) is weighted to 20% of the Higher 2 assessment.

Candidates are expected to have been exposed to a range of topics and experimental techniques such as:

  1. Titration, e.g. acid-base titration (using suitable indicators such as methyl orange, screened methyl orange, thymolphthalein, and thymol blue), redox titration, iodimetric titration, indirect titration, including the preparation of standard solutions. Other types of titrations may also be required.
  2. Gravimetric analysis, e.g. volatilization gravimetry
  3. Gas collection
  4. Thermochemistry, including thermometric titration
  5. Chemical kinetics, e.g. continuous and initial rate methods
  6. Qualitative Inorganic analysis involving an element, a compound or a mixture. Systematic analysis will not be required. Candidates should be familiar with the reactions of cations, anions, and tests of gases as detailed in the Qualitative Analysis Notes. Reactions involving ions not included in the QA notes may be tested: in such cases, candidates will not be expected to identify the ions but only to draw conclusions of a general nature. Candidates should not attempt tests, other than those specified, on substances, except when it is appropriate to test for a gas.
  7. Qualitative inorganic analysis requiring a knowledge of simple organic reactions e.g. test-tube reactions indicating the presence of unsaturation ( C = C), alcoholic, phenolic, carbonyl, carboxyl and amino groups, may be tested, but this would be for the testing of observation skills and drawing general conclusions only
  8. Simple organic synthesis and purification, including use of water bath, setting up and the use of reflux and distillation apparatus

Please click on the following link to view the latest schedule!

H2 CHEMISTRY PRACTICAL SCHEDULE

 

 


OUR STRUCTURED PRACTICAL TRAINING SYSTEM

Based on the above syllabus, we have several structured programs for you, depending on whether you are a Beginner or a Reviser.

You are at the Beginner level if you have never done any Chemistry Practical work before, or your last Chemistry Practical session was more than 2 years ago.

You are at the Reviser level if you have completed the Beginner practicals, or you are re-taking your Chemistry Practical exam, or you are a school candidate who has completed JC1/Y5.

 


Singapore Learner @ Bukit Batok

Blk 644, Bukit Batok Central, #01-68. S(650644).

Tel: +(65) 6569 4897,   +(65) 88765498 (WHATAPPS) 

Email:  principal@singaporelearner.com

If you wish to visit us, kindly call or sms first. Thank you.

 

Posted in A-Level, H2 Chemistry, IP Chemistry, JC Chem (H2/H1), Practical

H2 MOCK PRACTICAL EXAM (CHEM)

To do your A-Level H2 Chemistry Practical Mock Exam, please choose one or more of the following slots:

Session 1: Monday 7/10, 9 am – 12 pm. (Code: H2PC1)

Session 2: Wednesday 9/10, 9 am – 12 pm. (Code: H2PC2)

Session 3: Wednesday 9/10, 2 pm – 5 pm. (Code H2PC3)

Location: BLK 644, BUKIT BATOK CENTRAL, #01-68. s(650644)


At the end of each session, the tutor will go through the answers with you, highlight your mistakes (if any) and give you tips on how to score well for your actual practical.


If you need training,

Session 1: Saturday 5/10, 9 am – 11.30 am. (Code: H2TPC1)

Session 2: Tuesday 8/10, 2 pm – 4.30 pm. (Code: H2TPC2)

To book a Practical session (MUST be at least 3 days in advance),

(1) SMS or Whatsapp the following info to 9786 0411: (a) Name of student; (b) Date and Time; (c) Subject OR (d) Name and Code.

(2) Pay $160 (O-level, per session) or $280 (A-level, per session) via cash or online transfer or Paylah or Paynow (to 9786 0411).

* If you prefer days and timings different from our regular schedule, a surcharge of $30 per session is imposed as extra preparation is needed on our side.

For enquiries, please whatsapp to 9786 0411 or call our centre at 6569 4897.

Location: BLK 644, BUKIT BATOK CENTRAL, #01-68. s(650644)

 

Posted in A-Level, H2 Chemistry

A-Level H2 Chemistry June Holidays Topical Revision 2019

The June holiday provides an excellent opportunity to revise and consolidate your knowledge in both J1 and J2 H2 Chemistry, as well as to prepare for the upcoming A-levels. Our topical revision classes conducted in small groups so that the tutor has enough time to help each student individually.

For J2 Chemistry(First Three topics are suitable for J1 as well)

 

 

 

 

Posted in H2 Chemistry

H2 Chemistry Tuition

JC2 H2 Chemistry:

  • Saturday | 10.45 am – 12.15 pm | Code: J2C1
  • Sunday | 10.45 am – 12.15 pm | Code: J2C2
  • Monday| 7.30 pm – 9.00 pm | Code: J2C3

JC1 H2 Chemistry:

  • Saturday |12.30pm-2.00pm| Code: J1C1
  • Wednesday |7.30pm-9.00pm| Code: J1C2

Administrative Matters:

Location:   Blk 644, Bukit Batok Central, #01-68. S(650644).

Our location is just a 3-min walk from either the Bukit Batok MRT station or the Bukit Batok Bus Interchange. Buses that stop along the roads surrounding our location are numbers 157, 178, 66, 506, 173, 174, 176, 187, 985. Buses services which terminate at Bukit Batok Bus Interchange are 61, 77, 106, 173, 177, 189, 852, 941, 945, 947.

TUITION FEES

TO REGISTER, SMS <STUDENT NAME>, <CODE> TO 88765498

For enquiries, kindly call 65694897 or sms to 88765498.http://wa.link/w0xxk2