c. Slippery feeling is not a property of an acid
The solution can be divided into three groups namely acid, base and neutral.
This property can be identified by using acid-base indicators such as litmus or universal indicators, or it can be with a pH meter
There are some opinions from experts about acid base
An acid is a compound that in water releases H + ions
Example
CH₃COOH (aq) ---> H⁺ (aq) + CH₃COO⁻ (aq)
The number of H⁺ions produced by 1 acid molecule is called valence acid, whereas ions formed after releasing H⁺ ions are called acidic residual ions
Based on the amount of H⁺ ions released, acids can be classified into
Example: HCN, HI, HCl, HBr
Example: H₂C₂O₄, H₂SO₄, H₂CO₃
Example: H₃PO₄
Acid = donor (donor) proton (H⁺ ion)
Base = proton (receiver) acceptor (H⁺ ion)
NH₄⁺ (aq) + H₂O (l) ⇄ NH₃ (aq) + H₃O⁺ (aq)
From this theory, it is known as the conjugate acid base pair
The conjugate base is an acid which has given a proton
Conjugate acids are bases that have received protons
Acid ⇄ conjugate base + H +
Bases + H + ⇄ conjugate acids
Acid: accepts an electron pair (acceptor)
Bases: give electron pairs (donors)
Acid Properties:
pH <7
the taste is sour
Corrosive
Make blue litmus paper turn red
Neutralize the base solution (neutralization reaction)
Reacts with bases to produce salt and water
HCl + NaOH -> NaCl + H₂O
Reacts with metals to produce hydrogen gas
2HCl + 2Na ---> 2NaCl + H₂
So in addition to choice C which is a property of bases, choices A, B and D are properties of acid
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[tex]\boxed{{\text{c}}{\text{. slippery feeling}}}[/tex] is not a property of acid.
Further explanation:
Acids and bases can be defined in many ways based on different theories, which are as follows:
1. Arrhenius theory: According to this theory, acid is defined as the one which produces hydrogen or hydronium ions in a solution, while the base is defined as the one which produces hydroxide ions in a solution. Examples of Arrhenius acids include HBr, [tex]{\text{HN}}{{\text{O}}_3}[/tex] and [tex]{{\text{H}}_2}{\text{S}}{{\text{O}}_4}[/tex] while NaOH and KOH are examples of Arrhenius bases.
2. Bronsted-Lowry theory: According to this theory, the acid in the reaction donates a proton while a base is one that accepts a proton. [tex]{{\text{H}}_2}{\text{O}}[/tex] acts as Bronsted acid while [tex]{\text{N}}{{\text{H}}_3}[/tex] is a Bronsted base.
Ammonia is an example of a Bronsted-Lowry base as it accepts protons from the other species like water. Water, therefore, acts as Bronsted-Lowry acid as it donates a proton to other species. (Refer to the attached image)
3. Lewis theory: According to this theory, an acid accepts a pair of electrons to electron-rich species while a base donates electrons to electron-deficient species in the reaction. Examples of Lewis acids are [tex]{\text{B}}{{\text{F}}_3}[/tex], [tex]{\text{S}}{{\text{O}}_3}[/tex] while [tex]{{\text{H}}_2}{\text{O}}[/tex] and ROH are the examples of Lewis base
Acids are ionic compounds that produce positive hydrogen ions when dissolved in water. Ionic compounds are compounds that contain positive metal ions and negative nonmetal ions held together by ionic bonds. Acid is defined as a molecule that can donate a proton or accept an electron-pair. An example of an acid is hydrogen chloride (HCl).
Acids are not while the bases are in nature. Hence option c is correct and option a, b and d are incorrect.
Learn more:
1. Oxidation and reduction reaction https://brainly.com/question/2973661
2. Calculation of moles of HClhttps://brainly.com/question/5950133
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Properties of acid
Keywords: Acid, sour taste, hydrogen ion, metal, hydrogen chloride (HCl) and bases.
