Question

In the given series of reactions, what are y and z respectively?
NaCl + H2O+CO, + NH4X + Y
At-H,0,-CO
Q+
+10H30
Z
(Q is used in removing permanent hardness of water.)
1) NaHCO,, NaOCI, 2) NH CI, Na Co, 3) Na, CO,, NH CI 4) Na Co,,NaHCO,​

Answer 1

Answer:

For example, when hard water is heated, Ca2+ ions react with bicarbonate (HCO3-) ions to form insoluble calcium carbonate (CaCO3), as shown in Equation 1. ... the "lime-soda process" is used to remove Ca2+ and Mg2+ from the water supply. ... treated with a combination of slaked lime, Ca(OH)2, and soda ash, Na2CO3.

Explanation:

hope it helps...

Answer 2

Answer:

Y= NH₄CL

Z=Na₂CO₃

Explanation:

To remove the hardness of water we use washing soda Na₂Co₃.

From the reaction,

We get → Y= NH₄CL because Cl⁻ reacts with NH₃ and H⁺ and also sodium bicarbonate here.

Then,

When hard water is heated, the Ca²⁺ ions which are present here react with bicarbonate (HCO3-) ions to form insoluble calcium carbonate (CaCO3). This helps to remove the hardness in the water.

The last element used Na₂CO₃= Z to get the result before.

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