1.The thermal stability of the hydrides of group 15 follows the order:a.NH3<PH3<AsH3<SbH3<BiH3\text{NH}_3 < \text{PH}_3 < \text{AsH}_3 < \text{SbH}_3 < \text{BiH}_3NH3<PH3<AsH3<SbH3<BiH3b.NH3>PH3>AsH3>SbH3>BiH3\text{NH}_3 > \text{PH}_3 > \text{AsH}_3 > \text{SbH}_3 > \text{BiH}_3NH3>PH3>AsH3>SbH3>BiH3c.PH3>NH3>AsH3>SbH3<BiH3\text{PH}_3 > \text{NH}_3 > \text{AsH}_3 > \text{SbH}_3 < \text{BiH}_3PH3>NH3>AsH3>SbH3<BiH3d.AsH3<PH3>SbH3>BiH3>NH3\text{AsH}_3 < \text{PH}_3 > \text{SbH}_3 > \text{BiH}_3 > \text{NH}_3AsH3<PH3>SbH3>BiH3>NH3Login to continueOnly logged in users canattempt or see the solution.
