$NaCl$ is an example of
- ACovalent solid
- BIonic solid
- CMolecular solid
- DMetallic solid
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Similar Questions
Given below are two statements. One is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: Sharp glass edge becomes smooth on heating it up to its melting point.
Reason $R$: The viscosity of glass decreases on melting.
Choose the most appropriate answer from the options given below.
Assertion $A$: Sharp glass edge becomes smooth on heating it up to its melting point.
Reason $R$: The viscosity of glass decreases on melting.
Choose the most appropriate answer from the options given below.
DifficultJEE MAIN 2021
View SolutionQuartz is a crystalline variety of
Medium
View SolutionWhich of the following is isotropic?
Easy
View SolutionWhich one of the following is a molecular crystal?
Crystalline solids possess $......$.
Easy
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