An alkali is titrated against an acid with methyl orange as indicator, which of the following is a correct combination?

Options

A. `{:("Base","Acid","End point"),("Storng","Strong","Pink to colourless"):}`
B. `{:("Base","Acid","End point"),("Weak","Strong","Colourless to pink"):}`
C. `{:("Base","Acid","End point"),("Strong","Strong","Pinkish red to yellow"):}`
D. `{:("Base","Acid","End point"),("Weak","Strong","Yellow to pinkish red"):}`

Answer

D