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The charring of sugar takes place when treated with concentrated H2SO4 . What is the type of reaction involved in it?

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Important Questions on The p-Block Elements

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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The shape of SCl4 is best described as a
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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?
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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?
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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:
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
What is the precursor which is diluted to make H2SO4?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which one of the following is an oxide?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which of the following is wrong statement?
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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:
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
On treating a compound with warm dil. H2SO4, gas X is evolved which turns K2Cr2O7 paper acidified with dil. H2SO4 to a green compound Y. X and Y respectively are :
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements

Match List-I with List-II :

  List-I   List-II
  Industrial process   Application
(a) Haber's process (i) HNO3 synthesis
(b) Ostwald's process (ii) Aluminium extraction
(c) Contact process (iii) NH3 synthesis
(d) Hall-Heroult process (iv) H2SO4 synthesis

 Choose the correct answer from the options given below:

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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:
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements

Which of the following statements is correct?

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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?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
When SO2 gas is passed through aqueous Na2CO3, the product(s) formed is(are):
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The element that combines with oxygen to give an amphoteric oxide is-
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which of the following oxoacid of sulphur has –O–O– linkage?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The statement that is not true about ozone is :
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Which catalyst is used for oxidation of SO2 to SO3 in lead chamber process for the manufacture of sulphuric acid?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
Hot concentrated sulphuric acid on reaction with which one of the following elements, produces two gaseous products?
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Chemistry>Inorganic Chemistry>The p-Block Elements>Important Compounds of Group 16 Elements
The catalyst used in the Contact Process is