Amorphous and Crystalline Solids — Prelims Questions

Which of the following statements is INCORRECT regarding amorphous solids?

Which of the following substances is an example of a crystalline solid?

A solid substance 'X' exhibits a sharp melting point and when cut with a sharp-edged tool, it yields two pieces with smooth surfaces. Which of the following properties would 'X' most likely exhibit?

Which of the following statements correctly describes the nature of glass?

Which of the following properties is NOT exhibited by crystalline solids?

Upon heating, a solid 'Y' gradually softens and becomes viscous over a temperature range. Which of the following statements is true about solid 'Y'?