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JEE Main20257 Apr 2025Morning ShiftChemistryIonic EquilibriumActual

An aqueous solution of HCl with pH 1.0 is diluted by adding equal volume of water (ignoring dissociation of water). The pH of HCl solution would (Given 2=0.30)

Options

  1. Areduce to 0.5
  2. Bincrease to 1.3
  3. Cremain same
  4. Dincrease to 2

Correct answer

B. increase to 1.3

Step-by-step solution

HCl _ ( aq ) pH =1 ; [ H ⁺ ]=10⁻¹ If equal volume of water is added concentration will become half aligned & [ H ⁺ ]_ sol = 10⁻¹ 2 & pH =1.3 aligned

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