p-Block elementsHard
Question
Ortho phosphoric acid on heating above 300oC gives :
Options
A.hypophosphorus acid
B.hypophosphoric acid
C.metaphosphoric acid
D.phosphorous acid
H4P2O7 
(HPO3)n.More p-Block elements Questions
Nitrogen (I) oxide is produced by :...Borax is prepared by treating colemanite with :...The thermal stability of hydrides of oxygen family is in order :...Which of the following statement is incorrect :...The decrease in stability of higher oxidation state in p-block with increasing atomic number is due to :...