HARD
Earn 100

On oxidation with iodine, sulphite ion is transformed to

50% studentsanswered this correctly

Important Questions on The p-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Among the following allotropic forms of sulphur, the number of allotropic forms, which will show paramagnetism is _______.
(A) α-sulphur
(B) β-sulphur
(C) S2-form
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
In resonance hybrid of ozone molecule, O-O bond length is
MEDIUM
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Given below are two statements:

Statement I : α and β forms of sulphur can change reversibly between themselves with slow heating or slow cooling.

Statement II : At room temperature the stable crystalline form of sulphur is monoclinic sulphur.

In the light of the above statements, choose the correct answer from the options given below:

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
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?
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?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which one of the following is not the use of SO2?
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
On electrolysis of dil. sulphuric acid using Platinum Pt electrode, the product obtained at anode will be
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
What colour is produced when H2S gas is passed through an alkaline aqueous solution of sodium nitroprusside?
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
Explain the formation of O2 molecule by molecular orbital theory.
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?
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:
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?
EASY
Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which of the following is used as disinfectant?
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.