Statement: In an acid-basic titration involving a strong base and a weak acid, methyl orange can be used as an indicator.
Explanation: Methyl orange changes its colour in the pH range 3 to 5.

Options

A. If both (A) and (R) are correc, and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If both (A) and (R) are incorrect.

Explanation

Both `(A)` and `(R)` are false.
Correct `(A):` For titration of `S_(B)//W_(A) (pH` change near the end point `8-10`), phenolphthalein or thymol blue are used. Correct `(R)` methy1 orange changes colour in `pH` range `(3 to 4.5)`