Chemistry · 2022
JEE Main · 30 June 2022, Shift 1 · Q61
An element X has a body centred cubic (bcc) structure with a cell edge of 200 pm. The density of the element is 5 g cm^-3. The number of atoms…
An element X has a body centred cubic (bcc) structure with a cell edge of $\displaystyle 200$ pm. The density of the element is $\displaystyle 5 \mathrm{~g} \mathrm{~cm}^{-3}$. The number of atoms present in $\displaystyle 300$ g of the element X is \_\_\_\_.
Given : Avogadro constant, $\displaystyle \mathrm{N}_{\mathrm{A}}=6.0 \times 10^{23} \mathrm{~mol}^{-1}$.
Official answer
(4)
$\displaystyle 25 \mathrm{~N}_{\mathrm{A}}$
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.