A few drops of aqueous NaOH are dropped on a pH paper. The color of the pH paper will turn to:
violet
Explanation for the correct option:
(D) Violet
Explanation for incorrect options(s):
(A) blue
The blue color indicates the solution is slightly basic in nature.
(B) green
The green color on pH paper indicates a neutral or slightly acidic solution.
(C) yellow
The yellow color indicates the solution is acidic in nature.
Hence, the correct answer is an option (D).