Some pairs of ions are given below. In which pair, first ion is more stable than second ?

In which pair second ions is more stable than first ?

In which pair, second ion is more stable than first?

In which pair second ion is more stable than first?

In which of the following pairs, first species is more stable than second ?

Out of the following pairs (of complexes), in which option, first complex is more stable than second complex :

Some pairs of aids are given below. Select the pair in which second acids is stronger than first.

In which of the following pairs A is more stable than B ?