A) \[CaC{{O}_{3}}\]
B) \[CaO\]
C) \[Ca{{(OH)}_{2}}\]
D) \[Ca{{(HC{{O}_{3}})}_{2}}\]
Correct Answer: C
Solution :
\[\underset{(A)}{\mathop{Ca{{(OH)}_{2}}}}\,+Ca{{(HC{{O}_{3}})}_{2}}\xrightarrow{{}}2CaC{{O}_{3}}\downarrow +{{H}_{2}}O\]Temporary hardness of water is removed by \[Ca{{(OH)}_{2}}\]. It converts bicarbonates into insoluble calcium and magnesium carbonate which are removed by filteration \[\underset{(A)}{\mathop{Ca{{(OH)}_{2}}}}\,+N{{a}_{2}}C{{O}_{3}}\xrightarrow{{}}CaC{{O}_{3}}+\underset{Caustic\,\,Soda}{\mathop{2NaOH}}\,\] \[Ca{{(OH)}_{2}}+2C{{O}_{2}}\xrightarrow{{}}\underset{Cloudy}{\mathop{Ca{{\left( HC{{O}_{3}} \right)}_{2}}}}\,\]You need to login to perform this action.
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