Very Short Question and Answers - Acids and Bases in Solutions

HCl, HNO₃, etc., show acidic character because they dissociate to produce H⁺ ions in solution, whereas alcohol and glucose do not produce H⁺ ions when dissolved and therefore do not exhibit acidic properties.

An aqueous solution of an acid conducts electricity because it contains ions. The dissociation of acids produces H⁺ and other anions, allowing electric current to flow.

Dry HCl gas does not change the color of dry litmus paper because it does not produce H⁺ ions in the absence of water, and thus does not exhibit acidic properties outside of a solution.

It is recommended to add acid to water to prevent excessive heat generated during the reaction, which can cause splattering and dangerous conditions.

When a solution of an acid is diluted, the concentration of hydronium ions (H₃O⁺) decreases as the total volume increases, leading to a lower number of H₃O⁺ ions per unit volume.

When excess base is dissolved in sodium hydroxide, the concentration of hydroxide ions (OH⁻) increases as more OH⁻ ions are generated from the dissolution.

When hydrochloric acid (HCl) is dissolved in water, it produces hydronium ions (H₃O⁺) and chloride ions (Cl⁻).

A base that dissolves in water is characterized as an alkali and produces hydroxide ions (OH⁻) in solution.

The neutralization reaction between an acid and a base can be represented as Acid + Base → Salt + Water or H⁺ + OH⁻ → H₂O.

No, not all bases are considered alkalis. Only soluble bases that dissolve in water and produce hydroxide ions (OH⁻) are classified as alkalis.

H⁺ ions combine with water to form hydronium ions (H₃O⁺), indicating that H⁺ ions do not exist freely in aqueous solutions.

The bulb does not glow when glucose solutions are tested for electrical conductivity, indicating that glucose does not produce ions in solution.

Always add acid slowly to water, wear appropriate personal protective equipment (gloves, goggles), and work in a well-ventilated area to avoid inhalation of fumes.

Hydrogen ions (H⁺) cannot exist alone in an aqueous solution because they immediately combine with water to form hydronium ions (H₃O⁺).

If the bulb glows when testing an acid solution, it indicates the presence of free ions that allow for the flow of electric current.

Sulfuric acid is considered a strong acid because it dissociates completely in water to produce a high concentration of H⁺ ions.

Alkalis feel soapy to the touch and have a bitter taste, although they should never be tasted due to their corrosive nature.

An acid can be defined as a substance that produces H⁺ ions in water, while a base produces OH⁻ ions in water.

Hydrogen gas (H₂) is produced when a metal reacts with hydrochloric acid.

The reaction of an acid with an alkali produces a salt and water as the main products.