A diatomic molecule X2 has a body-centred cubic (bcc) structure with a cell edge of 300 pm. The dens — JEE Mains Chemistry Past Papers Chemistry Question
Question
A diatomic molecule X2 has a body-centred cubic (bcc) structure with a cell edge of 300 pm. The density of the molecule is 6.47 g cm–3. The number of molecules present in 200 g of X2 is: (A) 4NA (B) 2NA (C) 40NA (D) 8NA
Answer: A
💡 Solution & Explanation
For BCC Z = 2 Volume N M Z d A | JEE MAIN-2020 | DATE : 05-09-2020 (SHIFT-1) | PAPER-1 | OFFICIAL PAPER | CHEMISTRY PAGE # 6 6.17 = 8 ] 3 [ 02 . M 6.17 = . 02 . M M = 50 No. of mole = 200 = 4 No. of molecule = 4 NA
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