RRB Group D 14-Dec-2018 Shift 2 Solved Paper

© examsiri.com

Question : 21 of 100

Marks: +1, -0

When an acid reacts with a carbonate or metal hydrogen, it forms salts, carbon dioxide gas and water accordingly. Which of the following equations is correct for this chemical reaction?

Na₂CO_3(s) + HCl(aq) → 2NaCl_(aq) + H₂O(l) + 2CO_2(g) + H₂O_(l)
Na2CO3(s) + HCl(aq) → NaCl(aq) + H2O(l) + CO2(g)
Na2CO3(s) + 2HCl(aq) → 2NaCl(aq) + H2O(l) + CO2(g)
Na2CO3(s) + 2HCl(aq) → 2NaCl(aq) + 2CO2(g)

Go to Question:

Prev Question

Next Question