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CGP EDU Academic Team
Published on: August 13, 2026
When 100 ml Ca(OH) 2 solution of 0.01 M is diluted with water, the pH of the resulting solution changes to 12. Volume of water added is –
Text Solution
Verified by ExpertsThe correct answer is:
C
Molarity of 
= 0.02 M (M 1 )
V 1 = 100 ml
V 2 = ?
M 2 = 10 –2 (pH = 12, pOH = 2, [OH – ] = 10 –2 )
⇒ 0.02 × 100 = V 2 × 10 –2
⇒ V 2 = 200 ml
⇒ So volume of H 2 O added = V 2 – V 1 = 100 mL
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