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Accelerate JEE 2020: Ionic Equilibrium Class 3 (10.08.2019)
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Question 1
pH of 0.005 M calcium acetate (pKa of CH3COOH = 4.74) is:
Question 2
pKa of a weak acid (HA) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively.
The pH of their salt (AB) solution is:
The pH of their salt (AB) solution is:
Question 3
Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionisation constant of HA is 10-5, the ratio of salt to acid concentration in the buffer solution will be:
Question 4
The pKa of a weak acid (HA) is 4.5. The pOH of an aqueous buffered solution of HA in which 50% of the acid is ionized is
Question 5
The solubility product of AgI at 25 ºC is 10-16 mol2L-2. The solubility of AgI in 10-4 N solution of KI at 25 ºC is in mol/L
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Apr 9JEE & BITSAT