Which of the Two ions `Ca^(+2)` (or) `Zn^(+2)` is more stable and why?

Which one is more stable and why?

Which of the following shapes of SF_(4) is more stable and why?

Out of Cu_(2)Cl_(2) and CuCl_(2) , which is more stable and why?

Which of the two compounds are more stable and why . K_(4)[Fe(CN)_(6),K_(3)[Fe(CN)_(6)] ?

Which of the following complexes is more stable and why ? [Co(en)_3]^(3+) and [Co(NH_3)_6]^(3+)

Draw Newman and sawhorse projections for the eclipsed and staggered conformations of ethane. Which of these conformations is more stable and why ?

(i)Which one out of Fe^(2+) and Fe^(3+) ions is more paramagnetic and why (ii)Which of the following ions are expected to becoloured and why Fe^(2+), Mn^(2+), Cr^(3+), Cu^(+) Sc^(3+), Ti^(4+)

Why is sodium ion stable ?

Which of the following ions is more stable ?