Oxoacids

The number of S=O and S−OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are :

The number of P−OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid ($\ce{H4P2O7}$) respectively are :

The correct sequence of decreasing number of π-bonds in the structures of $\ce{H2SO3}$, $\ce{H2SO4}$ and $\ce{H2S2O7}$ is :

The nitrogen containing compound produced in the reaction of $\ce{HNO3}$ with $\ce{P4O10}$

The pair in which phosphorous atoms have a formal oxidation state of +3 is :

The correct statement(s) regarding, (i) HClO, (ii) $\ce{HClO2}$, (iii) $\ce{HClO3}$ and (iv) $\ce{HClO4}$, is(are)

The least number of oxyacids are formed by :

Which of the following compounds has a P − P bond ?

Among the following oxoacids, the correct decreasing order of acid strength is :

Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of

Bleaching powder contains a salt of an oxoacid as one of its components. The anhydride of that oxoacid is

The total number of diprotic acids among the following is

$\ce{H3PO4}$, $\ce{H2SO4}$, $\ce{H3PO3}$, $\ce{H2CO3}$, $\ce{H2S2O7}$, $\ce{H3BO3}$, $\ce{H3PO2}$, $\ce{H2CrO4}$, $\ce{H2SO3}$

Match each of the reactions given in Column I with the corresponding product(s) given in Column II.