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ICSE Class 10 Chemistry 2019 Solved Paper

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The pH values of three solutions A,B and C are given in the table. Answer the following questions :
 Solution  pH value
 A  12
 B  2
 C  7
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Question : 43
Total: 86
Which solution will liberate CO2 when reacted with sodium carbonate?
Solution:  
Solution B is an acid so it will liberate CO2 when reacted with sodium carbonate.
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