P-Block Elements Ques 246
Question: A certain element forms a solid oxide which when dissolved in water forms an acidic solution, the element is
[CPMT 1972, 78]
Options:
A) Argon
B) Potassium
C) Phosphorus
D) Sulphur
Show Answer
Answer:
Correct Answer: C
Solution:
$ P_4+5O_2\to 2P_2O_5 $ $ P_2O_5+3H_2O\to 2H_3PO_4 $
