Q. A crystalline solid

A) Changes abruptly from solid to liquid when heated
B) Has no definite melting point
C) Has an irregular three-dimensional arrangements
D) Undergoes deformation of its geometry easily
Explanation

(a)
A crystalline substance has a sharp melting point $ie$, solid changes abruptly into liquid state

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.