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JEE Main · 2023 · 13 Apr 2023 · Shift 1 · s-Block Elements

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react with to yield an ionic salt. Choose the incorrect option related to this reaction from the following:
  1. (A)Be is tetrahedrally coordinated in the ionic salt.
  2. (B)The reaction is an example of acid - base neutralization reaction.
  3. (C)Both Sr and Be elements are present in the ionic salt.
  4. (D)The elements Be is present in the cationic part of the ionic salt.✓ Correct

Answer: (D)

Solution

Beryllium hydroxide is amphoteric, and with the strong base strontium hydroxide it behaves as an acid, so the reaction is an acid–base neutralisation. In the salt strontium is the cation and beryllium lies in the anion , where it is tetrahedrally coordinated, and both elements are present in the salt. The statement that beryllium is present in the cationic part of the salt is therefore incorrect.

JEE Main · 2023 · 13 Apr 2023 · Shift 1 · Single correct option

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