Most favourable conditions for electrovalency are (a) Low charge on ions, large cation and small anion
(b) High charge on ions, small cation and large anion.
(c)X High charge on ions, large cation and small anion
(d) Low charge on ions, small cation and large anion
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A: Low charge on ions, large cation and small anion

Explanation:

Electrovalency is defined as process of transfer of electrons from its valence shell from one atom to another to form ions in such a manner that both elements will achieve stable electronic configuration.

Now cations are positively charged ions and therefore the bigger the cation, the more electrons it looses and thus the more it favors Electrovalency.

While an ions are negative and the lesser they are the more they favor Electrovalency.

Thus, the correct answer is option A

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante