Which of the following solids has the maximum | vedclass

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(D) The melting point of a solid depends on the nature of the forces holding its particles together.$1$. $Ice$ $(H_2O)$ is a molecular solid held by h

Vedclass · Accepted Answer

$SiO_2$

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(D) The melting point of a solid depends on the nature of the forces holding its particles together.$1$. $Ice$ $(H_2O)$ is a molecular solid held by hydrogen bonds,which is relatively weak.$2$. $Dry \, ice$ $(CO_2)$ is a molecular solid held by weak van der Waals forces.$3$. $NaCl$ is an ionic solid with strong electrostatic forces of attraction,having a melting point of approximately $1074 \ K$.$4$. $SiO_2$ (Quartz) is a covalent network solid where silicon and oxygen atoms are linked by strong covalent bonds in a three-dimensional structure. This network requires a very high temperature to break,resulting in a melting point of approximately $1986 \ K$.Therefore,$SiO_2$ has the highest melting point among the given options.

List-$I$ (Type of solid)	List-$II$ (Example)
$(A)$ Metallic	$(1)$ Diamond
$(B)$ Ionic	$(2)$ Ice
$(C)$ Molecular	$(3)$ $NaCl$
$(D)$ Covalent	$(4)$ $Cu$

Which of the following solids has the maximum melting point?

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Match List-$I$ with List-$II$ based on the type of solid and its example:
List-$I$ (Type of solid) List-$II$ (Example)
$(A)$ Metallic $(1)$ Diamond
$(B)$ Ionic $(2)$ Ice
$(C)$ Molecular $(3)$ $NaCl$
$(D)$ Covalent $(4)$ $Cu$

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