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What is true about H2S2O7?

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Important Questions on The p-Block Elements

EASY
In preparation of sulphuric acid from Sulphur dioxide in lead chamber process. What substance is used as a catalyst?
MEDIUM
Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?
MEDIUM
The correct sequence of decreasing number of π -bonds in the structure of H2SO3, H2SO4 and H2S2O7 is:
EASY
What is the precursor which is diluted to make H2SO4?
MEDIUM
The oxoacid of sulphur that does not contain bond between sulphur atom is:
EASY
On treating a compound with warm dil. H2SO4, gas X is evolved which turns K2Cr2O7 paper acidified with dil. H2SO4 to a green compound YX and Y respectively are :
EASY

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:

MEDIUM
The number of S=O and S-OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are:
MEDIUM
In which pair of ions do both the species contain S-S bond?
MEDIUM
When SO2 gas is passed through aqueous Na2CO3, the product(s) formed is(are):
EASY
The element that combines with oxygen to give an amphoteric oxide is-
EASY
Which of the following oxoacid of sulphur has OO linkage?
EASY
Which catalyst is used for oxidation of SO2 to SO3 in lead chamber process for the manufacture of sulphuric acid?
EASY
Hot concentrated sulphuric acid on reaction with which one of the following elements, produces two gaseous products?