Question

Column I		Column II
A	Depature from regularity in the arrangement of constitutent particles in a crystal	p	Zinc blende
B	Cubic	q	Defect or imperfection
C	Glass and fused silica	r	$Si{O}_4$
D	Tetrahedral	s	Amorphous solid

• A. A - (p), B - (r), C - (q), D -(s)
• B. A - (q), B - (p), C - (s), D -(r)
• C. A - (s), B - (q), C - (r), D -(p)
• D. A - (r), B - (s), C - (p), D -(q)

Answer 1

Answer: (B)

$(a\to q)$ Defect
$(b\to p)ZnS$ belongs to cubic system
$(c\to s)$ Glass and $Si{O}_2$ are amorphous solid
$(d\to r)Si{O}_4$ have tetrahedron structure