Chemistry · Volumetric Analysis
Phenolphthalein is used as an indicator for the titration of sodium hydroxide solution against a standard solution of oxalic acid. The colour change that is observed at an alkaline pH close to the equivalence point during this titration is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1pinkish red to yellow
- 2yellow to pinkish red
- 3colourless to pink
- 4pink to colourless✓
Correct answer
pink to colourless
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