The concentration of hydroxide ions is less than the concentration of hydronium ions for acidic solutions. true false

Answer : The given statement is true.

Explanation :

pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.

Mathematically,

When the pH less than 7 then the solution is acidic and the concentration of hydrogen ion is greater than hydroxide ion.When the pH more than 7 then the solution is basic and the concentration of hydrogen ion is less than hydroxide ion.When the pH is equal to 7 then the solution is neutral and the concentration of hydrogen ion is equal to the hydroxide ion.

As per question, the concentration of hydroxide ions is less than the concentration of hydronium ions then its pH become less than 7 and the solution will be acidic.

Hence, the given statement is true.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na