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4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry4. Chemical bonding and molecular structure1 Mark
MCQ
Which of the following pairs consists of only network solid ?
  • A
    $SiO_2 ,P_4O_{10}$
  • B
    $P_4O_{10} ,SO_3$
  • C
    $P_4O_{10} ,P_4O_6$
  • ✓
    Dinmond,$SiO_2$
✓

Answer

Correct option: D.
Dinmond,$SiO_2$
d
A network solid or covalent network solid is a chemical compound (or element) in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material.

In a network solid there are no individual molecules, and the entire crystal may be considered a macromolecule.

So in Diamond, $\mathrm{SiO}_{2}$ atoms are bonded by covalent bonds in a continuous network extending throughout the material.

In a network solid there are no individual molecules, and the entire crystal may be considered a macromolecule.

Hence option D is correct.

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