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JEE Main202227 Jul 2022Evening ShiftChemistryIonic EquilibriumActual

The Plot of pH -metric titration of weak base NH 4 OH vs strong acid HCl looks like

Correct answer

0

Step-by-step solution

Titration curve of NH 4 OH vs HCl WB + SA At the very beginning of the curve, the pH starts by falling quite quickly as the acid is added, but the curve very soon gets less steep. This is because a buffer solution is being set up composed of the excess ammonium hydroxide and the ammonium chloride being formed. Notice that the equivalence point is now somewhat acidic ( a bit less than pH 5), because pure ammonium chloride isn't neutral. However, the equivalence point still falls on the steepest bit of the curve.

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