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NTA Abhyas JEE Main2020Chemistrys Block ElementsPractice

Choose the incorrect statements.

Options

  1. ABeCO 3 is preserved in an atmosphere of CO 2 as it is thermally least stable.
  2. BBeF 2 forms a complex compound with excess NaF, in which the complex entity containing Be, is a cation.
  3. CBeryllium dissolves in an alkali to form [Be(OH) 4 ] 2- ion.
  4. DBeryllium exhibits no diagonal relationship with sodium.

Correct answer

B. BeF 2 forms a complex compound with excess NaF, in which the complex entity containing Be, is a cation.

Step-by-step solution

BeF 2 + NaF → Na 2 BeF 4 Complex entity is an anion.

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