• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

Which indicator is used in the titration of sodium hydroxide against oxalic acid and what is the colour change at the end point            [2024]
1 Phenolphthalein, pink to yellow  
2 Alkaline KMnO4, colourless to pink  
3 Phenolphthalein, colourless to pink  
4 Methyl orange, yellow to pinkish red colour  

Ans.

(3)

Phenolphthalein is used as an indicator in the titration of sodium hydroxide (strong base) against oxalic acid (weak acid), which changes the colour from colourless to pink.