EASY
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Platinised asbestos or vanadium pentoxide is used as a catalyst in the oxidation of sulphur dioxide in the contact process.

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Important Questions on The p-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Match the following:
 
a  Pure nitrogen i  Chlorine
b Haber process ii Sulphuric acid
c  Contact process iii Ammonia
d  Deacon’s process iv Sodium azide or Barium azide

Which of the following is the correct option?
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The number of S=O and S-OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are:
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The correct statement(s) regarding,

(i) HClO

(ii) HClO2

(iii) HClO3 and

(iv) HClO4 is /are
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The catalyst used in the Contact Process is 
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The number of bonds between sulphur and oxygen atoms in S2O82- and the number of bonds between sulphur and sulphur atoms in rhombic sulphur, respectively are:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
In which pair of ions do both the species contain S-S bond?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements

O3+2KI aq⟶?

Product of the reaction is

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
In preparation of sulphuric acid from Sulphur dioxide in lead chamber process. What substance is used as a catalyst?
HARD
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The correct statement(s) about O3 is(are)
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The statement that is not true about ozone is :
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
What colour is produced when H2S gas is passed through an alkaline aqueous solution of sodium nitroprusside?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which of the following oxoacid of sulphur has –O–O– linkage?
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The oxoacid of sulphur that does not contain bond between sulphur atom is:
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Explain why oxygen is a gas while other members of the same group are solids.
 
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements

Which of the following statements is correct?

EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The structure of Marshall's acid among the following is:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The correct sequence of decreasing number of π -bonds in the structure of H2SO3, H2SO4 and H2S2O7 is:
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which of the following is wrong statement?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Write down the formula of the precipitate formed when H2S gas is passed through an aqueous solution of silver nitrate.