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Sengkang Secondary School 2021 Pure Chemistry Paper 1 & 2

This is the short summary of the Prelim Paper Review I've done for





My 3 matrices:


Relevance: 6.5/10

Insightfulness: 7.5/10

Difficulty: 5.5/10

Overall: 8/10

Expectation: 80%


Questions worth trying in the paper:


Question 8 - Periodicity, Acid-Base & Salt


Question 9 - Environmental Chemistry, Application of Chemistry


Question 10 EITHER - Rate of Reaction, Reversible Reactions


Short writeup:


The 2021 Sengkang Secondary School Pure Chemistry Paper 1 & 2 is a creatively set exam designed to challenge students with real-life applications of chemistry and unique twists that prevent them from breezing through the questions. This paper is ideal for students aiming to start early on their preparation for the preliminary exams in September.


The difficulty of this paper is well-calibrated, requiring effort but not being excessively hard. The main challenge comes from topics outside of Organic Chemistry, which most students have yet to complete. The Organic Chemistry questions are relatively simple compared to the other topics tested. This makes it an excellent paper to kick-start your revision while you work towards mastering Organic Chemistry in July.


Overall, this paper is highly recommended for timed practice in July. It is an excellent resource for preparing students for their preliminary exams.


For personalized feedback and detailed analysis, consider booking a one-time paid consultation class with me. Together, we can go through this exam paper after I have marked it, helping you understand your mistakes and improve your performance.


For more detailed insights and to enhance your Chemistry skills, follow our blog and TikTok channel for expert tips and reviews.

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