SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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salt + water
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salt + water + carbon dioxide
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Either A or B
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None of the above
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Detailed explanation-1: -When acids react with carbonates, such as calcium carbonate (found in chalk, limestone and marble), a salt, water and carbon dioxide are made. The carbon dioxide causes bubbling during the reaction, which is observed as fizzing.
Detailed explanation-2: -Acids on reaction with metal carbonates produce metal salt, carbon dioxide and water. For example, sodium carbonate reacts with hydrochloric acid to give sodium chloride, water and carbon dioxide. The reaction involved is: Na2CO3(aq)+HCl(aq)→2NaCl (aq)+H2O(l)+CO2(g)
Detailed explanation-3: -Therefore, the correct option is (C) Carbon dioxide and water.
Detailed explanation-4: -Metal carbonate reacts with an acid to form the respective salt, carbon dioxide and water. For example: 2HCl(aq)+MgCO3(s)→MgCl2(aq)+CO2(g)+H2O(l)
Detailed explanation-5: -Acid reactions with carbonates and hydrogencarbonates Acids react with metal carbonates and hydrogencarbonates in the same way. These reactions produce salt, water and carbon dioxide.