Solid State

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MHT CET 2025 – Solid State Chemistry Mock Test

 

Solid-State Chemistry is an essential topic in the MHT CET 2025 Chemistry syllabus. It deals with the arrangement of atoms, ions, and molecules in solids, their structures, and their properties. Understanding these concepts is crucial for scoring high in competitive exams like MHT CET, JEE, and NEET.

Why is Solid State Important for MHT CET?

  • Weightage: 3-4 questions in MHT CET

  • Scoring topic with direct formula-based questions

  • Frequently repeated concepts in past years

 

Key Concepts of Solid State Chemistry

1. Types of Solids

Type of Solid Example Properties
Crystalline Diamond Long-range order, definite shape
Amorphous Glass Short-range order, no definite shape

2. Crystal Lattices and Unit Cells

  • Bravais Lattices: 14 types

  • Types of Unit Cells: Primitive, Body-centered, Face-centered

  • Coordination Number: Number of nearest neighbors (e.g., FCC = 12, BCC = 8)

3. Packing Efficiency

  • Simple Cubic (SC): 52%

  • Body-Centered Cubic (BCC): 68%

  • Face-Centered Cubic (FCC): 74% (highest packing efficiency)

4. Defects in Solids

  • Stoichiometric Defects: Schottky, Frenkel

  • Non-Stoichiometric Defects: Metal excess, Metal deficiency

  • Impurity Defects: Doping in semiconductors

Most Repeated Questions in MHT CET

  1. What is the coordination number of FCC unit cell?

    • a) 4

    • b) 6

    • c) 8

    • d) 12 ✅

  2. Which type of solid lacks a definite geometric shape?

    • a) Crystalline solid

    • b) Amorphous solid ✅

    • c) Ionic solid

    • d) Metallic solid

  3. Schottky defect occurs in which of the following?

    • a) NaCl ✅

    • b) AgBr

    • c) ZnS

    • d) SiO₂

Take the MHT CET 2025 Solid State Mock Test

Now that you have revised the key concepts and important questions, test your understanding by attempting a real-time MHT CET mock test.

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