Q.

What are "X" and "Y" in the reaction NaHCO3 + HCl→ NaCl + X + Y?

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a

H2, CO2

b

CO2, H2O

c

H2, CO

d

CO, CO2

answer is D.

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Detailed Solution

Oxygen from the metal hydrogen carbonate combines with the hydrogen in the hydrochloric acid to form water, and the sodium goes with chlorine to form sodium chloride, making carbon dioxide and water in the process.

Acid + Metal carbonate →Salt + Water + Carbon dioxide

NaHCO3 + HCl → NaCl + H2O + CO2

Hence, X=H2O, Y=  CO2 .

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