How many Chemistry questions are on the MDCAT?

Around 45 of the 180 questions — the second-biggest section after Biology.

Is MDCAT Chemistry more conceptual or calculation-based?

Mostly conceptual with some single-step calculations. A firm grasp of bonding, periodicity and the mole concept covers a large share of the questions.

How do I prepare for organic chemistry?

Focus on functional groups and the reactions they undergo, then drill MCQs so you can recognise patterns quickly under time pressure.

MDCAT Chemistry

≈ 45 of 180 MDCAT questions

A handful of core ideas, tested again and again — get them solid and marks follow.

Chemistry is the second-largest MDCAT section, around 45 of the 180 questions. It rewards a clear grasp of a few core ideas — bonding, the mole concept, periodic trends and basic organic chemistry — applied over and over.

Most questions are conceptual or single-step calculations rather than long problems, so building speed and accuracy on the fundamentals pays off quickly.

What’s covered in MDCAT Chemistry

•Atomic structure & electronic configuration
•Periodic table & trends
•Chemical bonding
•States of matter
•The mole concept & stoichiometry
•Thermochemistry
•Chemical equilibrium
•Acids, bases & pH
•Electrochemistry
•Organic chemistry — functional groups & reactions

Sample Chemistry MCQs

Try a few — pick an answer to see the worked explanation, just like inside the app.

The maximum number of electrons in the third shell (n = 3) is:

Which compound contains an ionic bond?

At 25 °C, the pH of a neutral aqueous solution is:

How to prepare for MDCAT Chemistry

✓Nail the mole concept and stoichiometry — they underpin many questions.
✓Memorise periodic trends (atomic radius, ionisation energy, electronegativity).
✓Practise identifying functional groups and their typical reactions.

MDCAT Chemistry — FAQs

How many Chemistry questions are on the MDCAT?: Around 45 of the 180 questions — the second-biggest section after Biology.
Is MDCAT Chemistry more conceptual or calculation-based?: Mostly conceptual with some single-step calculations. A firm grasp of bonding, periodicity and the mole concept covers a large share of the questions.
How do I prepare for organic chemistry?: Focus on functional groups and the reactions they undergo, then drill MCQs so you can recognise patterns quickly under time pressure.

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