JEE Main 2026 Chemistry question
Given below are two statements: Statement I: Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis. Statement II: Phenolphthalein is a weak base, therefore it dissociates in acidic medium.
Answer: (B)
Solution
Only potassium dichromate is typically used as a primary standard (sodium dichromate is hygroscopic and unsuitable), so
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