Among the given carbonates / bicarbonates, find the value of (x + y + z) (KHCO)3,(NaHCO)3,(CaCO)3,Ca(HCO3)2,K2(CO)3 and Mg(HCO3)2 no. of compounds almost insoluble in water =x no. of compound which liberate CO2 on reaction with HCl=z no. of compounds that easily undergo thermal decomposition =y

Question

Among the given carbonates / bicarbonates, find the value of (x + y + z) (KHCO)3,(NaHCO)3,(CaCO)3,Ca(HCO3)2,K2(CO)3 and Mg(HCO3)2 no. of compounds almost insoluble in water =x no. of compound which liberate CO2 on reaction with HCl=z no. of compounds that easily undergo thermal decomposition =y (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

x=1 (i.e. CaCO3 ) y=5 (all except carbonate of Potassium easily undergo decomposition) z=6 (all liberate CO2 with mineral acid) x+y+z=1+5+6=12

x=1 (i.e. CaCO3​ ) y=5 (all except carbonate of Potassium easily undergo decomposition) z=6 (all liberate CO2​ with mineral acid) x+y+z=1+5+6=12

$x = 1$ (i.e. $C a C O_{3}$ )
$y = 5$ (all except carbonate of Potassium easily undergo decomposition)
$z = 6$ (all liberate $C O_{2}$ with mineral acid)
$x + y + z = 1 + 5 + 6 = 12$