List of top Chemistry Questions on Acid-base titrations asked in NEET (UG)

In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with \(KMnO_4\) solution. If the volume of \(KMnO_4\) solution required to reach the end point is 10 mL, the strength of the \(KMnO_4\) solution is

Phenolphthalein is used as an indicator for titration of sodium hydroxide solution against a standard solution of oxalic acid. The colour change observed at an alkaline pH close to equivalence point of this titration is:

Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the end point?