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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
s Block Elements

NTA Abhyas 2020 · Chemistry · s Block Elements

Choose the incorrect statements.

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\text{NaF} \to {Na}_{2} \left[{BeF}_{4}\right]<< br />Complex entity is an anion.
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