Aluminium metal has a density of `2.72 g cm^(-3)` and crystallizes in a cubic lattice with an edge of `404 pm`. Which of the following is correct?A. It forms bcc unit cellB. It forms fcc unit cellC. Its `CN = 8`D. Its `CN` is `6`

Aluminium metal has a density of `2.72 g cm^(-3)` and crystallizes in

1.	Aluminium metal has a density of `2.72 g cm^(-3)` and crystallizes in a cubic lattice with an edge of `404 pm`. Which of the following is correct?A. It forms bcc unit cellB. It forms fcc unit cellC. Its `CN = 8`D. Its `CN` is `6`
Answer» Correct Answer - B `rho = Z_(eff xx Aw of Al)/(N_(a) xx a^(3)), Z_eff = ?` `2.72 g cm^(-3) = (Z_(eff) xx 27)/(6.023 xx 10^(23) xx (404 xx 10^(-10))^(3)` `:. Z_(eff) = 4` Hence, it forms `fcc` structure with `CN = 12`.

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Aluminium metal has a density of `2.72 g cm^(-3)` and crystallizes in a cubic lattice with an edge of `404 pm`. Which of the following is correct?A. It forms bcc unit cellB. It forms fcc unit cellC. Its `CN = 8`D. Its `CN` is `6`

Aluminium metal has a density of `2.72 g cm^(-3)` and crystallizes in a cubic lattice with an edge of `404 pm`. Which of the following is correct?A. It forms bcc unit cellB. It forms fcc unit cellC. Its `CN = 8`D. Its `CN` is `6`

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