Q9 of 35 Page 1

What happens when:

(i) Orthophosphorus acid is heated?


(ii) XeF6 undergoes complete hydrolysis?

(i) Orthophosphorus acid (H3PO3) on heating undergoes disproportionate reaction to yield compounds phosphine (PH3) and orthophosphoric acid (H3PO4)


4H3PO3→ PH3 + 3H3PO4


(ii) XeF6 undergoes complete hydrolysis to give highly explosive solid, XeO3


4XeF6 + 3H2O → XeO3 + 6HF


More from this chapter

All 35 →
8

Calculate the emf of the following cell at 298 K:

Cr(s) / Cr3+ (0.1M) // Fe2+ (0.01M) / Fe(s)


[Given : ]

 8

The conductivity of 10-3 mol /L acetic acid at 25°C is 4.1 × 10-5 S cm-1.

Calculate its degree of dissociation, if for acetic acid at 250C is 390.5 S cm2 mol-1.

 10

Identify the following:

(i) Oxoanion of chromium which is stable in acidic medium.


(ii) The lanthanoid element that exhibits +4 oxidation state.

 11

Give the IUPAC name of the product formed when:

(i) 2-Methyl-1-bromopropane is treated with sodium in the presence of dry ether.


(ii) 1- Methyl cyclohexene is treated with HI.


(iii) Chloroethane is treated with silver nitrite.