What ions would you find in a solution if potassium perchlorate was dissolved in water?

- In aqueous solution, potassium perchlorate gives and  ions.

Explanations:- Potassium perchlorate formula is and it's an ionic compound. As per the solubility rules, all compounds of alkali metals are soluble. So,  the give ions in aqueous solution. As is clear from the formula of potassium perchlorate, it gives potassium ions and perchlorate ions when dissolved in water.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

i think it is d. e because the next one is igneous.