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Friday, 9 October

JEE Main 2025 · ChemistryMultiple choiceSingle correctEasyCalculation

JEE Main 7 April 2025, Shift 1, Chemistry Q54

Question 54 of 75 in this shift, Chemistry question 4 of 25, Section A.

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 log 2 = 0.30)
  1. (1)remain same
  2. (2)reduce to 0.5
  3. (3)increase to 2
  4. (4)increase to 1.3Official answer

Official answer

Option 4

NTA final key.

Chapter
Equilibrium
Topic
pH and Buffers
Idea tested
pH of Strong Acids and Bases

Same idea in other shifts

Asked 2× in all
  1. 4 Apr 2025, Shift 2 · Q71x mg of Mg(OH)2\mathrm{Mg(OH)_2} (molar mass = 58) is required to be dissolved in 1.0 L of water to produce a pH of 10.0 at 298 K. The value of…EasyNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.