p-Block elementsHard
Question
When an article is bleached by SO2 it loses its colour. The colour can be restored by :
Options
A.exposure to air
B.heating
C.dilution
D.none of these
Solution
SO2 + 2H2O → H2SO4 + 2H
coloured matter
colourless matter.
coloured matter
colourless matter.Create a free account to view solution
View Solution FreeMore p-Block elements Questions
Which of the following statements regarding ortho boric acid (H3BO3) is false ?...Borax is prepared by treating colemanite with :...he following acids have been arranged in the order of decreasing acid strength. Identify the correct order ClOH (I), BrO...Holme′s signals can be given by using :...The hydroxide of which metal ion is soluble in excess of sodium hydroxide solution :...