Question

Assertion: Quartz glass is crystalline solid and quartz is an amorphous solid
Reason: Quartz glass has long range order
A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false
D. If both assertion and reason are false

Answer 1

Correct Answer - D
The structure of quartz is crystalline and that of quartz glass is amorphous . The two structures are almost indentical yet in case of amorphous quartz glass, there is no long range order.