An alkali is titrated against acid with methyl orange as an indicator, which of the following is a correct combination?
Weak base is titrated by strong acid and end point is yellow to pinkish red.
Explanation for correct option:
B) Weak base is titrated by strong acid and end point is yellow to pinkish red.
Explanation for incorrect option:
A) Strong base is titrated by strong acid and end point is pinkish red to yellow.
C) Strong base is titrated by strong acid and end point is pink to colourless.
D) Weak base is titrated by strong acid and end point is colourless to pink.
Hence option B is correct, when a weak base is titrated with strong acid in presence of methyl orange the end point is when solution turns pinkish-red from yellow color.