Neet Solved Paper 2013 Question 16
Question: Which is the strongest acid in the following?
Options:
A) $ {H_2}S{O_4} $
B) $ HCl{O_3} $
C) $ HCl{O_4} $
D) $ {H_2}S{O_3} $
Show Answer
Answer:
Correct Answer: C
Solution:
- The strength of oxyacids can also be decided with the help of the oxidation number central atom. Higher the oxidation number of central atom, more acidic is the oxyacid. $ H _2\overset{+,6}{\mathop{S}},O _4,HC\overset{+}{\mathop{l}},{{\overset{5}{\mathop{O}},}_3},H\overset{+}{\mathop{Cl}},{{\overset{7}{\mathop{O}},} _{4,}}H _2\overset{+}{\mathop{S}},{{\overset{4}{\mathop{O}},}_3} $ Since, in $ HClO _4, $ oxidation number of Cl is highest, so $ HClO _4 $ is the strongest acid among the given.
