Ni (II) compounds are thermodynamically more stable than Pt(II) compounds but the order is reverse in case of + 4 oxidation states. Why?

Fe^(3+) compounds are more stable than Fe^(2+) compounds because

Why is Pt(IV) more stable than Ni(IV).

Give the correct order of initials T of F for following statements. Use T if statements is true and F if it is false. I) Sulphide reacts with Na_(2)[Fe(CN)_(5)(NO)] to form a purple coloured compound Na_(4)[Fe(CN)_(5)(NOS)] . In the reaction, the oxidation state of iron changes. II) Pt(IV) compounds are relatively more stable than Ni(IV) compounds III) The welding of magnesium can be done in the atmosphere of Helium. IV) LiAlH_(4) on hydrolysis will give H_(2)

Thermodynamically graphite is more stable than diamond but diamond does not transform into graphite on its own. Why?

The correct order of N-compounds in its decreasing order of oxidation states is

Why is europium (II) more stable than cerium (II) ?

Ge (II) compounds are powerful reducing agents whereas Pb(IV) compound are strong oxidants. It can be due to

Assertion (A) : Pb^(+4) compounds are stronger oxidiising agents than Sn^(4+) compounds . Reason (R): The higher oxidation states for group 14 elements are more stable for the heavier members of the group due to inert pair effect .

Assertion (A) : Pb^(+4) compounds are stronger oxidiising agents than Sn^(4+) compounds . Reason (R): The higher oxidation states for group 14 elements are more stable for the heavier members of the group due to inert pair effect .

Why Al^(3+) is the only stable oxidation state of Al in its compounds while Tl has +1 and +3 oxidation states?