Match the reactions given in column (I) with process/products in column (II) and select the proper code of choice from the choices given at the end.
(I) | (II) | |
(a) NaCl(aq) Na++Cl- Na + e- Na(s) 2C1- Cl2(g)+2e- | (p) | Castner Kellner Cell |
(b) | (q) | Bleaching Powder |
(c) (Slaked lime) | (r) | Solvay’s Process |
(d) | (s) | Down’s Cell |
(s); B 
(p); C 
(q); D 
(r)
(r); B 
(p); C 
(s); D 
(q)
(p); B 
(s); C 
(r); D 
(q)
(r); B 
(q); C 
(p); D 
(s)
Text Solution
Verified by ExpertsA
Sodium metal It is manufactured by electrolysis of a fused mixture of NaCl (40%) and CaCl 2 (60%) in Down's cell at 873 K. Na liberated at the cathode is collected, in kerosene oil while CL is evolved at the anode.
At cathode 
At anode 
Sodium hydroxide It is manufactured by electrolysis of an aqueous solution of NaCl (brine) in Castner - Kellner cell using mercury cathode and carbon anode. Sodium metal which is discharged at the cathode combines with mercury to form sodium amalgam. C1 2 .
At cathode 
amalgam
At anode 
The sodium amalgam thus obtained is treated with water to form sodium hydroxide and hydrogen gas.
2Na - amalgam + 2H 2 O 
2NaOH + 2Hg + H 2
Sodium carbonate It is obtained by Solvay ammonia process. When CO 2 is passed through a concentrated solution of brine (aqueous solution of NaCl ) saturated with ammonia, NaHCO 3 gets precipitated. NaHCO 3 on subsequent heating gives Na 2 CO 3 .
NaCl + NH 3 + CO 2 +H 2 O 
NaHCO 3 
+NH 4 C1
2NaHCO 3 
Na 2 CO 3 + CO 2 + H 2 O
It reacts with C1 2 to form calcium hypochlorite, Ca(OCl) 2
2Ca(OH) 2 + 2C1 2 
CaCl 2 +Ca(OCl) 2 + 2H 2 O
Slaked lime Bleaching power
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