Plz solve this

Plz solve this Which of the following statement is not correct? (a) The co-ordination number of each type of ions in CsCl crystal is 8 (b) A metal that crystallizes in BCC structure has a coordination number of 12 (c) A unit cell of an ionic crystal shows some of its ions with other unit cells = 95pm,ra- = 181 pm) (d) The length of the unit cell in NaCl is 552 pm (r

Option (b) is incorrect because Coordination number of BCC structure is '8' not '12'.

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option b is incorrect 
A metal that crystallises in BCC structure has a coordination number = 8
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