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| 1. |
NaCl is a AB type of solid . Its crystalline structure is known as rock salt structure in which `r_"Na"^+` and `r_"Cl"^-` are 95 and 181 pm respectively , where `Cl^-` is present at the lattice point of face centered cubic unit cell `Na^+` ions are located in void and those compounds which have same crystalline structure also have same coordination system in which `Na^+` and `Cl^-` ions are surrounded by certain number of opposite ions respectively. Under high pressure coordination number changes to 8 :8 type from 6 :6 type. If the atomic mass of Li and Cl are 7 and 35.5 amu respectively , then what would be number of LiCl molecule in cubic of LiCl with length x height x breadth = 1 x 1 x 1=1 `cm^3` ?A. Nearly `2.5xx10^22`B. Nearly `4xx10^20`C. Nearly `12xx10^30`D. Nearly `14xx10^23` |
| Answer» Correct Answer - A | |