Easy MCQ +4 / -1 PYQ · JEE Mains 2021

The parameters of the unit cell of a substance are a = 2.5, b = 3.0, c = 4.0, $\alpha$ = 90$^\circ$, $\beta$ = 120$^\circ$, $\gamma$ = 90$^\circ$. The crystal system of the substance is :

  1. A Hexagonal
  2. B Orthorhombic
  3. C Monoclinic Correct answer
  4. D Triclinic

Solution

a $\ne$ b $\ne$ c and $\alpha$ = $\gamma$ = 90$^\circ$ $\ne$ $\beta$ are parameters of monoclinic unit cell.

About this question

Subject: Chemistry · Chapter: States of Matter · Topic: Gas Laws

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