Q20 / 160 · AP EAMCET 2023 (15 May Shift 1) · Chemistry

An example for network solid is

  • Correct answer
    A
    $\mathrm{SiO}_2$
  • B
    $\mathrm{MgO}$
  • C
    $\mathrm{CaF}_2$
  • D
    $\mathrm{ZnS}$

Solution

$\mathrm{SiO}_2$ is a covalent network solid that forms a network of tetrahedral $\mathrm{SiO}_4^4$ units. $\mathrm{MgO}, \mathrm{CaF}_2$ and $\mathrm{ZnS}$ are ionic solids.

Hence, the correct answer is option: 'A'.

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