JEE Chemistry · Medium

Mole Concept and Stoichiometry: Dilution MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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DilutionMediumQuestion 600034

Question

If 20 mL of 6 M HCl is diluted to 120 mL, the new molarity is:
  1. A
    0.5 M
  2. B
    1 M
    Correct
  3. C
    1.5 M
  4. D
    36 M

Correct answer

1 M

Explanation

M₁V₁ = M₂V₂ → 6 × 20 = M₂ × 120 → M₂ = 120/120 = 1 M.