If a solution is basic, which of the following is true? a. ph = poh b. [h3o+] [oh-]

D. [H3O+] < [OH-]

Explanation:

A basic solution has pH > 7 so

pH = pOH - FALSE

This is neutral one.

Where [H3O+] = [OH-]

[H3O+] > [OH-] This occurs in the acidic solution, where the [H3O+], so the pH is so low.

[H3O+] < [OH-]

This is the basic solution, a pH >7, where the [OH-] is higher than  [H3O+]

B

Explanation:

Diamagnetism , paramagnetism and ferromagnetism are terms which are used to describe the magnetic activity of transition metals. These terms helps to know the response the metal will have when placed in a magnetic field. These activities can be discerned from the d-block electronic configuration. If the number of electrons are even, this means they all form a pair and the metal is diamagnetic. If otherwise, there is an unpaired electron which causes the paramagnetic activity of the metal in magnetic field.

To the question, options A-D are diamagnetic but configurations with d8 are the ones that form square planar complexes