JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
Aqueous solution of which salt will not contain ions with the electronic configuration \(1s^2\,2s^2\,2p^6\,3s^2\,3p^6\) ?
- A \(NaF\)
- B \(KBr\)
- C \(NaCl\)
- D \(CaI_2\)
Answer & Solution
Correct Answer
(A) \(NaF\)
Step-by-step Solution
Detailed explanation
\(NaF\) is composed of \(Na^+\) and \(F^-\) \(N{a^ + } \to [He]\,2{s^2}\,2{p^6}\) \({F^ - } \to [He]\,2{s^2}\,2{p^6}\) Hence do not match with the configuration given in the question.
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