Question

In the given series of reactions, Y and Z respectively are …………….? (Q is used in removing permanent hardness of water.) (a) NaHCO3, NaOCl2 (b) NH4Cl, Na2CO3 (c) Na2CO3, NH4Cl (d) Na2CO3, NaHCO3​

Answer 1

Answer:

R_SO3H. and. (RNH3)+OH-

Answer 2

The removing permanent hardness of water as $NH_{4}Cl,Na_{2}CO_{3}$.

Explanation:

• Ammonium chloride reacts with sodium hydroxide to form sodium chloride, ammonia and water.

$NH_{4}Cl+NaOH$→$NaCl+NH_{3}+H_{2}O$

• Ammonium carbonate reacts with sodium chloride to form sodium bicarbonate and ammonium chloride.

$NH_{4}HCO_{3}+NaCl$→$NaHCO_{3} +NH_{4}Cl$