There are some deposits of nitrates and phosphates in earth’s crust. Nitrates are more soluble in water. Nitrates are difficult to reduce under the laboratory conditions but microbes do it easily. Ammonia forms larger number of complexes with transition metal ions. Hybridisation easily explains the ease of sigma donation capability of NH₃ and PH₃. Phosphine is a flammable gas and is prepared from white phosphorus. Among the following, the correct statement is [JEE Adv 2008 P1]

Question

Examsnet · Accepted Answer

Correct Answer is : between NH3NH₃NH3​ and PH3,NH3PH₃, NH₃PH3​,NH3​ is a better electron donor because the lone pair of electrons occupies sp3sp³sp3 orbital and is more directional.

IIT JEE Advanced 2008 Paper 1