Question. Which one of the following are correctly arranged on the basis of the property indicated:

(a)I₂< Br₂<F₂<Cl₂ [ increasing bond dissociation enthalpy]

(b) H₂O > H₂S<H₂Te<H₂Se [ increasing acidic strength]

(c) NH₃ < N₂O< NH₂OH<N₂O₅ [ increasing oxidation state]

(d) BiH₃<SbH₃<AsH₃<PH₃<NH₃ [ increasing bondangle]

Answer: (d) BiH₃<SbH₃<AsH₃<PH₃<NH₃ [ increasing bondangle] correct order