Chemistry Entry Test Preparation Guide: Strategy for ECAT/MDCAT

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Chemistry punishes students who study it as one subject. It's really three subjects sharing a name — physical, organic, and inorganic — and each needs a completely different method. Use the wrong method on the wrong branch and months of effort evaporate.

Physical chemistry: it's applied mathematics

Mole concept, thermodynamics, chemical equilibrium, electrochemistry, chemical kinetics — every chapter reduces to formulas plus unit discipline. Method: one formula page per chapter, then 40–50 numericals per chapter. The patterns repeat heavily in entry tests; once you've seen each type three times, the paper starts looking familiar.

Organic chemistry: it's a map, not a list

The mistake is memorising reactions as isolated facts. Instead, build reaction maps: start from alkanes and draw every conversion you know, with reagents and conditions on the arrows. One page per family. Named reactions get their own cards: name, equation, conditions, and one distinguishing feature. Review the maps weekly — organic chemistry is 70% retention, 30% understanding.

Inorganic chemistry: it's a memory system

Periodic trends, chemical bonding, coordination compounds — this branch is factual. Brute memorisation fails; systems work. Learn trends as stories (why does ionisation energy increase across a period?) not as tables. Group exceptions together — entry tests love testing the exceptions. Make one-page comparison charts, e.g. all hydrides or all oxides side by side.

Past-paper pattern

Go through five years of past papers and tag every chemistry question by branch and chapter. The distribution is remarkably stable — the same chapters dominate every year. Let that distribution set your time allocation, not your comfort.

Common mistakes

  • One method for all three branches. The single biggest chemistry error.
  • Skipping inorganic because it "feels like memorisation." It's scoring marks left on the table.
  • No reaction maps. Lists fade; maps stick.
  • Ignoring conditions. Half of organic MCQs test conditions and reagents, not products.

Frequently asked questions

Is organic chemistry more important than physical?
They're roughly balanced in most entry tests, but organic rewards structured revision more — students who map it properly find it the most scoring branch.

How do I remember all the named reactions?
Cards with name, equation, conditions, and one unique feature — reviewed in spaced cycles, not crammed the night before.

Should I memorise the whole periodic table?
No. Memorise the trends and the logic behind them, plus the notable exceptions. That's what gets tested.



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