Question of 155
Q.Define Acid and Base on the basis of the following hypotheses:
(i) Arrhenius
(ii) Bronsted-Lowry
(iii) Lewis.
OR
Define the following:
(i) Buffer solution
(ii) Solubility product
(iii) Conjugate Acid-Base pair.
Madhya Pradesh MpbseMP Board Higher Secondary (Class 11) 2023Subjective· 3mImportance★★★★★
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Start your 14-day free trial to unlock the full solution →Arrhenius defines acids/bases via H+/OH- release in water; Bronsted-Lowry via proton donation/acceptance; Lewis (the broadest) via electron-pair acceptance/donation.
- Arrhenius concept: An acid is a substance that, when dissolved in water, increases the concentration of H+ (or H3O+) ions in solution. A base is a substance that, when dissolved in water, increases the concentration of OH- ions in solution. Example: HCl -> H+ + Cl- (acid); NaOH -> Na+ + OH- (base). This concept is limited to aqueous solutions.
- Bronsted-Lowry concept: An acid is any species (molecule or ion) that can donate a proton (H+) to another species. A base is any species that can accept a proton. Example: in HCl + NH3 -> NH4+ + Cl-, HCl is the acid (donates H+) and NH3 is the base (accepts H+). This concept works beyond aqueous solutions and explains conjugate acid-base pairs. …
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