Give the structure of pyrphyuric acid. How would you prepare it? What would you observe when colourless HI is added to pyrphuric acid ?
Which of the following electronic configuration represents noble gas ?
ns2np6
ns2np5
ns2np4
ns2np3
PCl3 and cold water reacts to produce which of the following?
H3PO3
H3PO2
H4P2O7
H3PO4
A.
H3PO3
PCl3 and cold water reacts to produce orthophosphorus acid (phosphorus acid) H3PO3.
PCl3 + 3HOH → H3PO3 + 3HCl
Which phosphorus reacts with KOH solution to produce phosphene gas?
White phosphorus
Red phosphorus
Both (a) and (b)
None of these
What are the products obtained when ammonia is reacted with excess chlorine ?
N2 and NCl3
N2 and HCl
N2 and NH4Cl
NCl3, and HCl
Reaction of HNO3 with I, S, P and C gives respectively
HIO3, H2SO4, H3PO4, and CO2
HIO3, H2SO3, H3PO4, and CO2
HIO2,H2SO4, H3PO4, and CO
I2O5, SO2, P2O, and CO2