Question

 

When any chloride is heated with conc. H2SO4, then HCl is obtained while when any bromide is heated with conc. H2SO4, then Br2 is obtained and not HBr.

This is because

Solution

Correct option is

HBr is a stronger reducing agent than HCl

 

Br2 is liberated because initially HBr is liberated which reduces H2SO4 to SO2 and Br2 is formed.   

             

             

       

But HCl does not reduce H2SO4 which is a good reducing agent.  

        

SIMILAR QUESTIONS

Q1

Which of the following is a mixed anhydride?

Q2

Out of H2S2O3, H2S4O6, H2SO5 and H2S2O8 peroxy acids are:

Q3

Identify the incorrect statements among the following:

Q4

The oxide of chlorine is a colourless oily liquid and most acidic:

Q5

XeOF4 is prepared by:

Q6

When dry chlorine is passed through silver chlorate heated to 90oC, then which of the oxide of chlorine is obtained?

Q7

Cl2O6 dissolves in sodium hydroxide to form:

Q8

When PH3 is passed through copper sulphate solution, then copper phosphide is obtained. This is because:

Q9

When oxalic acid is heated with concentrated H2SO4 it gives:

Q10

Acid strength of oxoacids of chlorine is in order: