A. None of the above
B. Acid + XCO3 → Salt + H2O + NH3
C. Acid + NaOH → Normal salt + CO2
D. Acid + XnCO3 → Salt + H2O + CO2

Correct Answer: Option D

D. Acid + XnCO3 → Salt + H2O + CO2

Copyright warnings! Do not copy.