P-Block Elements Ques 231
Question: Which of the following is a tetrabasic acid
[CPMT 1988]
Options:
A) Orthophosphorus acid
B) Orthophosphoric acid
C) Metaphosphoric acid
D) Pyrophosphoric acid
Show Answer
Answer:
Correct Answer: D
Solution:
$ H_4P_2O_7 $ pyrophosphoric acid $ HO-\underset{OH}{\overset{O}{\mathop{\underset{||}{\overset{||}{\mathop{P}}}}}}-O-\underset{OH}{\overset{O}{\mathop{\underset{||}{\overset{||}{\mathop{P}}}}}}-OH $ Tetrabasic ( $ 4-OH $ groups)
