Select from each set the molecule or ion having the smallest bond angle :
- H2Se , H2Te and PH3
- NO2− and NH2−
- POF3 and POCl3 ( X−P−X angle)
- OSF2Cl2 and SF2(CH3)2 ( F−S−F angle)
a. H2Se , NH2− , POF3 and OSF2Cl2
b. H2Te , NO2− , POF3 and SF2(CH3)2
c. PH3 , NH2− , POCl3 and SF2(CH3)2
d. H2Te , NH2− , POF3 and SF2(CH3)2