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Which one is incorrect match:-   TITRATION INDICATOR 1) Strong acid v/s strong base Phenolphthalein & methyl Orange 2) Weak acid v/s strong base Phenolphthalein 3) Strong acid v/s weak base Methyl orange 4) Weak acid v/s weak base Methyl Red

Which one is incorrect match:-   TITRATION INDICATOR 1) Strong acid v/s strong base Phenolphthalein & methyl Orange 2) Weak acid v/s strong base Phenolphthalein 3) Strong acid v/s weak base Methyl orange 4) Weak acid v/s weak base Methyl Red Correct Answer 4

Sr. No 1 (Correct):

  • For Strong acid v/s strong base all kinds of the indicator are used.
  • Hence, Phenolphthalein & methyl Orange, Phenolphthalein, Methyl orange, Methyl red is used for strong acid v/s strong base.
     

Sr. No 2 (Correct): For Weak acid v/s strong base (pH > 7), Phenolphthalein is used.

Sr. No 3 (Correct): For Strong acid v/s weak base (pH < 7), Methyl orange, Methyl Red are used.

Sr. No 4 (Inorrect): For  Weak acid v/s weak base Bromothymol Blue is used.

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