The _______ crystal system is present in diamond.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 2 i.e. Cubic.
The crystal structure of diamond belongs to the cubic crystal system, specifically the diamond cubic (or face-centered cubic) lattice. In this lattice, carbon atoms are arranged such that each atom is tetrahedrally bonded to four others, forming a highly symmetric and rigid 3D framework . This cubic arrangement is characterized by equal edge lengths and 90° angles along all three axes, giving diamond exceptional structural strength, high refractive index, and remarkable hardness.