SOLID STATE
12th Chemistry ,Chapter :- 1 ( Solid State ) (1) The number of atoms in a body centred cubic (bcc) unit cell of a monoatomic elementary substance is equal to: (a) 1 (b) 2 (c) 3 (d) 4 (b) 2 Answer (2) An atom at the corner of a unit cell contributes to the unit …