MCQOPTIONS
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| 1. |
PbS has NaCl type structure. The distance between \[P{{b}^{2+}}\] and \[{{S}^{2-}}\] ions is 297 pm. What is the volume of unit cell of PbS? |
| A. | \[209.6\times {{10}^{-24}}c{{m}^{3}}\] |
| B. | \[207.8\times {{10}^{-23}}c{{m}^{3}}\] |
| C. | \[22.3\times {{10}^{-23}}c{{m}^{3}}\] |
| D. | \[209.8\times {{10}^{-23}}c{{m}^{3}}\] |
| Answer» B. \[207.8\times {{10}^{-23}}c{{m}^{3}}\] | |