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Most Important Selected Qs for JEE AdvancedChemistryp Block Elements (Group 15, 16, 17 & 18)

All the elements of Group 15 form hydrides of the type EH ₃ . From the following given statements with respect to EH ₃ , select the incorrect one.

Options

  1. ABasicity as well as reducing strength is maximum for NH ₃
  2. BStandard enthalpy of formation is negative only for NH ₃ while for others it is positive
  3. CHEH bond angle follows the order: NH ₃ PH ₃ AsH ₃ SbH ₃
  4. DBoiling point follows the order: PH ₃ AsH ₃ NH ₃ SbH ₃

Correct answer

A. Basicity as well as reducing strength is maximum for NH ₃

Step-by-step solution

Answer (A) Basicity follows the order : NH ₃ PH ₃ AsH ₃ SbH ₃ BiH ₃ Reducing strength follows the order: NH ₃ PH ₃ AsH ₃ SbH ₃ BiH ₃

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