Catholic JC 2025 JC1 H2 Chemistry WA2
- Yao Le Chen
- Aug 14
- 2 min read
This is the short summary of the Prelim Paper Review I've done for
My 3 matrices:
Relevance: 8.5/10
Insightfulness: 6.5/10
Difficulty: 4.5/10
Overall: 8/10
Expectation: 80%
Key questions to consider:
Question 2 - Ideal Gas
Best to complete all questions under timed condition
Short writeup:
2025 CJC H2 Chemistry JC1 WA2 Review – A Surprisingly Manageable Challenge
The 2025 CJC H2 Chemistry JC1 WA2 is as classic as a Weighted Assessment 2 can get — straightforward, technical, and laser-focused on testing core skills. There’s minimal fluff, almost no heavy real-world context, and very little to trip up students who have prepared adequately. This is not one of those papers that blindsides you with obscure scenarios; instead, it sticks to familiar ground.
In many ways, the biggest strength of this paper lies in its predictability. The content matched what most students expected for WA2, though pitched at a slightly easier level. There’s some application — such as the ideal gas law question about a life vest — but most of the exam relies on standard techniques with the occasional small twist at the end of a question. For those who rely solely on tutorial-style practice without exploring deeper variations, those tiny twists could still cost a precious mark or two.
Make no mistake — this is not a difficult paper. The challenge is less about mastering the content and more about staying sharp for the entire duration. Many students, especially at JC1 level, may not yet have the stamina for longer papers. This is where lapses in focus lead to avoidable errors — misreading a question, forgetting a unit, or phrasing an answer poorly. Even so, the structure of the paper means that an attentive student should have no problem securing at least a B.
From a preparation perspective, this paper is gold for timed practice. It’s perfect for simulating exam conditions for shorter assessments like WA2. Pair it with the 2025 SAJC H2 Chemistry WA2 and you have something even better — a mock JC1 promotional exam experience that blends both technical mastery and real-world application.
📍 If this paper left you unsure of where you stand, let’s fix that.

At my newly launched tuition centre at 1102A Serangoon Road, Level 2, we help JC1 Chemistry students sharpen their exam skills and build confidence through weekly classes and open class revision sessions. I don’t just help students study—I teach them how to think like a top student. Every question, every paper, and every class is designed to bridge the gap between memorisation and mastery.
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