JEE Main 2010 Chemistry question

Chemistry The Solid State JEE Main 2010

Not in JEE Main or NEET syllabus

Percentage of free space in cubic close packed structure and in body centred packed structure are respectively

(1)30% and 26%
(2)26% and 32%Correct
(3)32% and 48%
(4)48% and 26%

Answer: (2)

Solution

Packing efficiency: ccp 74% (free space 26%), bcc 68% (free space 32%), option (2).

Question ID VK-039244