Which of the following metal carbonates liberate. `CO_(2)(g)` on heating :

Which of the following metal carbonates liberate. `CO_(2)(g)` on heating :
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Which of the following metal carbonates liberate. `CO_(2)(g)` on heating : A. `Na_(2)CO_(3)` B. `K_(2)CO_(3)` C. `Rb_(2)CO_(3)` D. `Ag_(2)CO_(3)`
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For the reaction `CO(g)+(1)/(2)O_(2)(g)rarr CO_(2)(g)` Which one of the statement is correct at constant T and P ?

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