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RRB Junior Engineer / DMS / CMA 2019 · Question 108 of 3719

When acid reacts with metal carbonate, _______ is/are formed.

Chemistry - Acids and Bases

  1. Aa. Water
  2. Bb. Carbon dioxide
  3. Cc. Salt
  4. Dd. All of the optionsCorrect

Answer: D. d. All of the options

Explanation

When an acid reacts with a metal carbonate, salt, water, and carbon dioxide are produced. • Example: Hydrochloric acid on reaction with sodium carbonate forms sodium chloride, carbon dioxide and water. 2HCl+Na2CO3 → 2NaCl+CO2+H2O Sulfuric acid + Ferrous carbonate → Ferrous sulfate + water + carbon dioxide ■H2SO4 + FeCO3 --> FeSO4 + H2O + CO2 • The salt that forms will depend on the specific acid and metal carbonate which were used in the reaction.

Source: RRB JE 2019 CBT-1 (24-May-2019 Shift-1) — ixambee compilation with answer key and solutions · reliable-secondary

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