The number of P - O bonds in P₄O₁₀ is

If the supply of oxygen is limited, H₂S reacts with O₂ to form

The hydrolysis of NCl₃ by water produces

What is obtained on heating NH₄NO₃ strongly?

The basicity of pyrophosphorus acid is

The oxidation state of phosphorus in cyclotrimetaphosphoricacid is

Bromine water reacts with SO₂ to form

Sulphuric acid reacts with PCl₅ to give

Which one of the following compounds is a peroxide?

Ozone can be tested by