The m.p. of SiO2 is very high since the type of bonding in it is :
A
ionic
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B
covalent (polymer)
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C
dative
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D
hydrogen bond
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Solution
The correct option is C covalent (polymer) Malting point of SiO2 is high because of its gaint polymer structure. Each SiO2 unit is bonded with four other SiO2 units through covalent bonds.