p-Block elementsHard
Question
Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B. A and B are :
Options
A.CaOCl2, Na2SO3
B.Na2S2O3, CaOCl2
C.CaCl2, Na2S2O3
D.CaOCl2, Na2S2O3
Solution
CaOCl2 acts as bleaching agent while Na2S2O3 acts as antichlor according to the following reaction.
CaOCl2 + H2O → Ca(OH)2 + Cl2.
Na2S2O3 + 4Cl2 + 5H2O → 2NaHSO4 + 8HCl.
CaOCl2 + H2O → Ca(OH)2 + Cl2.
Na2S2O3 + 4Cl2 + 5H2O → 2NaHSO4 + 8HCl.
Create a free account to view solution
View Solution FreeMore p-Block elements Questions
1 mol each of H3PO2, H3PO3 and H3PO4 will neutralise x mole of NaOH, y mol of Ca(OH)2 and z mol of Al(OH)3 (assuming all...Which of the following is the increasing order of enthalpy of vaporization ?...The laughing gas is :...Which species exist:...The correct order of acidic strength of oxides of nitrogen is...