UNIT 05 : SOLID

Solid is one of the conceptually dense chapters in MDCAT Chemistry, sitting within the 25% Chemistry allocation of your 45-question paper.

What this chapter covers:

• Crystalline Solids
• Factors Affecting the Shape of Ionic Crystals
• Difference between Ionic and Molecular Crystals
• Crystal lattice
• Lattice Energy

This chapter is almost entirely conceptual and definition-driven, built on precise terminology, structural reasoning, and comparison between solid types rather than heavy numerical work. Given the PMDC’s 15% easy, 70% moderate, 15% difficult split, expect most questions here to test moderate-depth understanding of structure, classification, and reasoning rather than simple recall or complex calculation.

Why this practice set helps:

• Covers every subtopic the PMDC curriculum identifies, plus the supporting concepts textbooks present alongside them
• Every question includes a full explanation of why the correct answer is right and why each other option is wrong
• Built to help you learn faster than passive reading, with nothing the exam may draw from left untouched

Work through this set attentively, and you build the conceptual precision and structural clarity this chapter demands.