s-Block ElementsHard
Question
Chemical (X) is used for :
(i) the production of sodium hydroxide
(ii) the manufacturing of bleaching powder
(iii) for the extraction of magnesium from sea water. What is the chemical formula of (X)?
(i) the production of sodium hydroxide
(ii) the manufacturing of bleaching powder
(iii) for the extraction of magnesium from sea water. What is the chemical formula of (X)?
Options
A.Ca(OH)2
B.CaO
C.Ca(HCO3)2
D.CaCO3
Solution
(i) Ca(OH)2 + Na2CO3 → CaCO3 + NaOH
(ii) 3Ca(OH)2 + 2Cl2 → Ca(OCl)2.Ca(OH)2. CaCl2.2H2O (bleaching powder).
(iii) MgCl2 (from sea water) + Ca(OH)2 → Mg(OH)2 ↓ + CaCl2 (Dow′s process)
(ii) 3Ca(OH)2 + 2Cl2 → Ca(OCl)2.Ca(OH)2. CaCl2.2H2O (bleaching powder).
(iii) MgCl2 (from sea water) + Ca(OH)2 → Mg(OH)2 ↓ + CaCl2 (Dow′s process)
Create a free account to view solution
View Solution FreeMore s-Block Elements Questions
Beryllium has less negative value of reduction potentials compared to other alkaline earth metals due to :...A metal M readily forms water soluble sulphate MSO4, water insoluble hydroxide M(OH)2 and oxide MO. The oxide and hydrox...Which of the following statements is/are true ?...Select the correct statement with respect to sodium peroxide ?...Sodium burns in dry air to give :...