Question

Statement 1: One mole of NaCl contains $2$ moles of ions.
Statement 2: NaCl is a stable salt at room temperature.

• A. Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1.
• B. Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.
• C. Statement 1 is correct but Statement 2 is not correct.
• D. Statement 1 is not correct but Statement 2 is correct.
• E. Both the Statement 1 and Statement 2 are not correct

Answer 1

The correct option is B

Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

Option (B) is correct.

Statement 1: One mole of $NaCl$ contains 2 moles of ions i.e. a mole of chloride and a mole of sodium.Every $NaCl$ molecules has a $Na$ and a $C{l}^{-}$ atom. So, if you have $6.022x{10}^{23}$ molecules, you will have that same number of $Na$ atoms and $C{l}^{-}$ atoms, and by definition, 1 mole is $6.022x{10}^{23}$atoms.

Statement 2: $NaCl$ is a stable salt at room temperature.Sodium and chlorine forms a strong ionic bond, completing the octet of both atoms.They are arranged in a face centered cubic crystal structure where each $N{a}^{+}$ or $C{l}^{-}$ ion is surrounded by 6 of the opposite ions forming an octahedron. This makes sodium chloride a stable compound.