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NEET2001ChemistryGeneral Organic ChemistryActual

Which of the following order of basic strength is correct?

Options

  1. ANH ₃ < NH ₂ OH < HN ₃ < NH ₂- NH ₂
  2. BNH ₂ OH < HN ₃ < NH ₂- NH ₂ < NH ₃
  3. CHN ₃ < NH ₃ < NH ₂ OH < NH ₂- NH ₂
  4. DHN ₃ < NH ₂ OH < NH ₂- NH ₂ < NH ₃

Correct answer

B. NH ₂ OH < HN ₃ < NH ₂- NH ₂ < NH ₃

Step-by-step solution

Basicity in nitrogen compounds is attributed to the availability of lone pair of electrons. The order of availability of e⁻ pair on N -atom is NH ₃> NH ₂ NH ₂> HN ₃> NH ₂ OH Therefore, same is the order of basicity of these compounds.

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