The Following Pictures Represent Solutions at Various Stages in the Titration

question 9

Multiple Choice

The following pictures represent solutions at various stages in the titration of a weak diprotic acid H₂A with aqueous KOH.Unshaded spheres represent H atoms,black spheres represent oxygen atoms,and shaded spheres represent A^2- ions.(K⁺,H₃O⁺ initially present,OH^- initially present and solvent water molecules have been omitted for clarity) .
-Which picture represents the system at the first equivalence point?

• A)(1)
• B)(2)
• C)(3)
• D)(4)

---

Definitions:

Adaptive Behaviors

The collection of conceptual, social, and practical skills that people learn and perform to function in their everyday lives.

Animal Species

A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

Natural Contexts

Environments or situations that occur organically without human intervention, where behaviors and events can be observed in their true form.

Scaffolding

An educational technique that involves providing structure, support, or guidance to learners to help them achieve a higher level of understanding or skill.