Important Compounds of Group 16 Elements

In which of the following oxoacid of Sulphur, $\mathrm{S}-\mathrm{O}-\mathrm{O}-\mathrm{S}$ bond is present?

The general formula for polythionic acid series is ${\mathrm{S}}_{\mathrm{n}}{\left({\mathrm{SO}}_3\mathrm{H}\right)}_2$, where $\mathrm{n}=3$ to $6.$ What is the value of $\mathrm{n}$ for pentathionic acid acid?

Favourable conditions for the high production of ${\mathrm{SO}}_3$ by catalytic oxidation of ${\mathrm{SO}}_2$ with ${\mathrm{O}}_2$ which is the key step in the Contact process of manufacture of ${\mathrm{H}}_2{\mathrm{SO}}_4$ are

In the thermal decomposition of potassium chlorate ${\mathrm{XKClO}}_3\stackrel{∆}{\to }\mathrm{YKCl}+{\mathrm{ZO}}_2$, the correct order of X, Y, and Z is-

In how many of the following cases, hydrogen peroxide is obtained on hydrolysis?

Caro's acid, Marshall's acid, ${\mathrm{XeF}}_6$ in alkaline medium,

${\mathrm{TeF}}_6, {\mathrm{SOCl}}_2, {\mathrm{SO}}_2{\mathrm{Cl}}_2,{ \mathrm{N}}_2{\mathrm{O}}_5, {\mathrm{SiF}}_4, {\mathrm{BCl}}_3$

_____ gas is evolved in the thermal decomposition of potassium chlorate.

The products formed in the thermal decomposition of potassium chlorate in the presence of a catalyst are:

In which of the following reactions underlined atom undergoes change in its hybridisation?

Which of the following oxides will not give $\mathrm{O}{\mathrm{H}}^{-}$in aqueous solution:

On addition of concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ to a chloride salt, colourless fumes are evolved but in case of an iodide salt, violet fumes come out. This is because

Moist hydrogen cannot be dried over concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ because it:

Industrially sulphuric acid is manufactured by-

Common name of concentrated sulphuric acid is-

When _____ solution is added in potassium sulphate solution a _____ precipitate  is formed.

Which of the following will not be obtained when ${\mathrm{S}\mathrm{O}}_2$  is mixed with water:

The acid, which does not contain peroxy linkage, is

Identify a neutral oxide from the following oxides.

Moist hydrogen cannot be dried over concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ because it:

Which of the following reactions is incorrect?

Which of the following properties is not true for ozone?