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In Solvay process of manufacture of sodi...

In Solvay process of manufacture of sodium carbonate, the by-product is

A

`NH_(4) CI`

B

`Na HCO_3`

C

`CaCI_2`

D

`CO_2`

Text Solution

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The correct Answer is:
C
In Solvay process of manufacture of sodium carbonate, `"CaCI"_2` is obtained as a by product in ammonia-recovery tower. Here following reactions take place,
`NH_(4) HCO_(3) + Ca (OH)_2 overset(Delta)(to) NH_3 + Ca CO_3 + 2H_(2) O`
`Ca(OH)_2 + 2NH_(4) CI overset(Delta)(to) 2NH_(3) + underset("biproduct")(CaCI_(2) )+2H_(2) O`
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