HARDMCQ SINGLEJEE Mains ChemistryPhysical ChemistryIonic equilibriumAchiever Section
Assertion (A): pH of HCl solution is less than that of acetic acid of the same concentration. Reason (R): In equimolar solutions, the number of titrable protons present in HCl in less than that present in acetic acid.
A.A
B.B
C.C✓ Correct
D.D
Explanation
HCl is strong acid thus undergoes almost complete ionization while 3 CH COOH (acetic acid) is weak acid thus ionization is not complete. Thus, pH of HCl is less than pH of 3 CH COOH . Regarding titrable protons present, both HCl and 3 CH COOH are monobasic acid thus have equal no. of protons in both acids. Paragraph for Questions 28 to 30 Solubility of a salt is defined as the maximum amount of a salt which can be dissolved in a given amount of solvent at a particular temperature. Unit of solubility is mole per litre of solution. The solubility of a salt of weak acid with strong base (CH₃COOA
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