X and Y are sodium compounds. X is white crystalline solid on heating to 373K gives a white amorphous solid Y and liberates colourless , odour less gas (Z). Identify incorrect statement?
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a
Z when passed into saturated solution of Y, X is formed
b
X is sparingly soluble in water
c
Y is soluble in water
d
Aqueous solution of Y on heating with Ca(OH)2 gives X
answer is D.
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Detailed Solution
X = NaHCO3 ; Y = Na2CO3 ; Z = CO2Na2CO3 + Ca(OH)2 →∆CaCO3 + 2 NaOH