Oleum is known by two names: Fuming sulphuric acid and disulphuric acid. As the name suggests, it has two sulphuric acid molecules bound together. So, the formula is H 2 S 2 O 7 . Structure of Oleum:

HARD

Earn 100

Which of the following molecules has as $O — O$ bond ?

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Important Questions on The p-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Identify the incorrect statements among the following?
(i)

{SF}_{6}

does not react with water
(ii)

{SF}_{6}

{sp}^{3} d

hybridized
(iii)

S_{2} O_{3}^{2 -}

is a linear ion
(iv) There is no

π

-bonding in

{SO}_{4}^{2 -}

ion

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

The product obtained from the electrolytic oxidation of acidified sulphate solutions, is :

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

In polythionic acid,

H_{2} S_{x} O_{6} (x = 3

5

) the oxidation state(s) of sulphur is/are:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

In which pair of ions do both the species contain

S - S

bond?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

The structure of Marshall's acid among the following is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Account for the following:

Sulphurous acid is a reducing agent.

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

The number of

S = O

bonds present in sulphurous acid, peroxodisulphuric acid and pyrosulphuric acid, respectively are :

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Write formula and structure of three oxoacids of sulphur.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Oxidation state of

S

H_{2} S_{2} O_{8}

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Which of the following oxyacid of sulphur contains

S = S

linkage?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

The number of

S = O

and

S - OH

bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

The oxoacid of sulphur that does not contain bond between sulphur atom is:

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Draw the structure of

H_{2} S_{2} O_{7}

. What is the oxidation state of sulphur in it?

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Oxoacids of Sulphur

Match List $- I$ with List $- II$ and select the correct answer using the codes given below

List $- I$ (Oxyacid of sulphur)	List $- II$ (oxidation state of sulphur )
$A .$ $H_{2} {SO}_{3}$	$1 . + 1$
$B . H_{2} S_{2} O_{6}$	$2 . + 6$
$C . H_{2} S_{2} O_{2}$	$3 . + 4$
$D . H_{2} S_{2} O_{8}$	$4 . + 5$