Manipal Engineering Manipal Engineering Solved Paper-2012

  • question_answer
    Which of the following is tetrabasic acid?

    A) Orthophosphorus acid

    B) Orthophosphoric acid

    C) Metaphosphoric acid

    D) Pyrophosphoric acid

    Correct Answer: D

    Solution :

    \[{{H}_{4}}{{P}_{2}}{{O}_{7}}\](pyrophosphoric acid) is tetrabasic because it gives four\[{{H}^{+}}\]ions. \[HO-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{P}}}\,-O-\underset{\begin{smallmatrix}  | \\  OH \end{smallmatrix}}{\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{P}}}\,-OH\]


You need to login to perform this action.
You will be redirected in 3 sec spinner