Match the crystal system/unit cells mentioned in Column I with their characteristic features mentioned in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS. | Column I | Column II | |----------|----------| | (A) simple cubic and face-centred cubic | (p) have these cell parameters $a=b=c$ and $\alpha=\beta=\gamma$ | | (B) cubic and rhombohedral | (q) are two crystal systems | | (C) cubic and tetragonal | (r) have only two crystallographic angles of 90° | | (D) hexagonal and monoclinic | (s) belong to same crystal system |

JEE Advanced · 2007 · 08 Apr 2007 · Paper 2 · Solid State

Match the crystal system/unit cells mentioned in Column I with their characteristic features mentioned in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 × 4 matrix given in the ORS.

Column I	Column II
(A) simple cubic and face-centred cubic	(p) have these cell parameters $a = b = c$ and $α = β = γ$
(B) cubic and rhombohedral	(q) are two crystal systems
(C) cubic and tetragonal	(r) have only two crystallographic angles of 90°
(D) hexagonal and monoclinic	(s) belong to same crystal system

Answer: A → I, A → IV, B → I, B → II, C → II, D → II, D → III

Solution

(A) Simple cubic and face-centred cubic both belong to the cubic crystal system (s) with parameters

a = b = c

and

α = β = γ = 90°

(p).

(B) Cubic and rhombohedral are two different crystal systems (q). Both have

a = b = c

(p), but cubic has

α = β = γ = 90°

while rhombohedral has

α = β = γ \neq = 90°

.

(C) Cubic and tetragonal are two different crystal systems (q).

(D) Hexagonal and monoclinic are two different crystal systems (q). Monoclinic has only two angles equal to 90° (

α = β = 90°, γ \neq = 90°

) (r).

JEE Advanced · 2007 · 08 Apr 2007 · Paper 2 · Match the columns

Practise more: all JEE Advanced PYQs on Solid State →

JEE Advanced · 2007 · 08 Apr 2007 · Paper 2 · Solid State

Solution

More JEE Advanced questions on Solid State