PYQ NEET- ସ୍ୱାଧୀନତା ସମ୍ବନ୍ଧୀୟ ଯୋଗାଣୀ ଯୋଗ୍ୟ ଯୋଗ୍ୟତାକୁ ସହାୟକ କମ୍ପୋଜିଟ୍ ଲିମିଟେଡ୍-5
ପ୍ରଶ୍ନ: କେଉଁ ଜଟିଳ ଯୋଗାଣୀ ସବୁଠାରୁ ସ୍ଥିର ଅଟେ?
A) $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_3\left(\mathrm{NO}_3\right)_3\right]$
B) $\left[\mathrm{CoCl}_2(\mathrm{en})_2\right] \mathrm{NO}_3$
C) $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]_2\left(\mathrm{SO}_4\right)_3$
D) $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4\left(\mathrm{H}_2 \mathrm{O}\right) \mathrm{Br}\right]\left(\mathrm{NO}_3\right)_2$