Which of the following statements is correct about sodium chloride in the solid state?
it exists as aggregates of ions
it conducts electricity
its melting point is below 100oC
it exists as discrete molecules
its ions are linked by metallic bonds
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is it only me that knows that they r wrong.
A discrete molecule is one that are weakly bonded together
Yeah @Kekezeze, they are very wrong, the correct answer is A.
Ionic compounds contain ions and are held together by ionic bond, the attractive forces among the oppositely charged ions. Common salt (sodium chloride) is one of the best-known ionic compounds.
Molecular compounds are held together by covalent bond, and they contain discrete molecules, which are held together by sharing electrons (covalent bonding). Example methane CH4.
Why sodium chloride does not exist as molecules but aggregates of oppositely charged ions?
In case of sodium crystal each Na+ ion is surrounded by six Cl– ions and vice versa. ... So due to this ionic compound like NaCl do not exist as discrete molecule in the crystal lattice but exist as aggregates of a very large number of oppositely charged ions.
REF https://www.google.com/url?q=https://www.topperlearning.com/answer/why-nacl-does-not-exist-as-molecules-but-aggregates-of-oppositely-charged-ions/fhs1cvv&sa=U&ved=2ahUKEwiQj_74mJjrAhXJyaQKHY38AvgQFnoECBAQAg&usg=AOvVaw3oU8T5fVzmARRY9APE84kU
