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Standard X
Chemistry
Reaction of Carbonates and Bicarbonates with Dil. Sulphuric Acid
When a dilute...
Question

When a dilute acid X reacts with sodium carbonate, then sodium chloride, gas Y and water are formed. A gas Y is formed in the form of brisk effervescence.What is gas Y?


A

O2

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B

CO2

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C

CO

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D

H2

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Solution

The correct option is B

CO2


When a dilute hydrochloric acid reacts with sodium carbonate, then sodium chloride, CO2 and water are formed.

Na2CO3(s)+2HCl(aq)→2NaCl(aq)+CO2(g)+H2O(l)

The carbon dioxide gas is formed in the form of brisk effervescence(the rapid escape of small bubbles of gas from the liquid).


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