A solid compound 'X' on heating gives `CO_(2)` gas and a residue. The residue mixed with froms 'Y'. On passing an excess of `CO_(2)` through 'Y' in water, a clear solution, 'Z' is obtained. On boiling 'Z'. Compound 'X' is refomed. The compound 'X' is :
A
`CaCO_(3)`
B
`Na_(2)CO_(3)`
C
`K_(2)CO_(3)`
D
`Ca(HCO_(3))_(2)`
Text Solution
Verified by Experts
The correct Answer is:
A
`X overset(Delta)rarr CO_(2)+` residue Residue + water `rarr Y` (clear solution) `Y + CO_(2) Y + CO_(2) overset(H_(2)O)rarr Z` `Z overset("Boiling")rarr X` since if is producing `CO_(2)` i.e. its is carbonate salt. `CaCO_(3) overset(Delta)rarr CO_(2)+CaO` `CaC + H_(2) overset(Delta)rarr Ca(OH)_(2)` lime water `Ca(OH)_(2)+CO_(2) rarr Ca(HCO_(3))_(2)` `Ca(HCO_(3))_(2) overset(Delta)rarr CaCO_(3)+ CO_(2)+ H_(2)O` `X rarr CaCO_(3)`
Topper's Solved these Questions
S-BLOCK ELEMENTS
ALLEN|Exercise EXERCISE|230 Videos
S-BLOCK ELEMENTS
ALLEN|Exercise EXERCISE -1 (B)|1 Videos
s-Block element
ALLEN|Exercise All Questions|14 Videos
SOLUTIONS
ALLEN|Exercise EXERCISE -05 [B]|22 Videos
Similar Questions
Explore conceptually related problems
A solid compound 'X' on heating gives CO_(2) gas and a residue. The residue mixed with water forms 'Y' . On passing an excess of CO_(2) through 'Y' in water , a clear solution, 'Z' is obtained. On boiling 'Z' , compound 'X' is reformed. The compound 'X' is
A solid compound 'X' on heating gives CO_(2) gas and a residue. The residue mixed with water forms 'Y' . On passing an excess of CO_(2) through 'Y' in water , a clear solution, 'Z' is obtained. On boiling 'Z' , compound 'X' is reformed. The compound 'X' is
A compound (A) on heating in Busen flame imparts brick red colouration. (A) on heating gives CO_(2) gas and a residue (B) . The residue (B) when treated with water gives (c ) . On passing an excess of CO_(2) through (C ) in water, a clear solution (D) is obtained. On boiling (D) , compound (A) is reformed. Compound (A) is
A compound (A) on heating in Busen flame imparts brick red colouration. (A) on heating gives CO_(2) gas and a residue (B) . The residue (B) when treated with water gives (c ) . On passing an excess of CO_(2) through (C ) in water, a clear solution (D) is obtained. On boiling (D) , compound (A) is reformed. Compound (D) is
A compound (A) on heating in Busen flame imparts brick red colouration. (A) on heating gives CO_(2) gas and a residue (B) . The residue (B) when treated with water gives (c ) . On passing an excess of CO_(2) through (C ) in water, a clear solution (D) is obtained. On boiling (D) , compound (A) is reformed. Compound (C ) is
A compound (A) on heating in Busen flame imparts brick red colouration. (A) on heating gives CO_(2) gas and a residue (B) . The residue (B) when treated with water gives (c ) . On passing an excess of CO_(2) through (C ) in water, a clear solution (D) is obtained. On boiling (D) , compound (A) is reformed. Residue (B) is
A compound X on heating gives a colourless gas. This residue is dissolved in water to obtain Y. excess CO_(2) is bubbled through aqueous solution of Y, Z is formed. Z on gentle heating give back X. the X is
A compound X on heating gives a colourless gas. This residue is dissolved in water to obtain Y. excess CO_(2) is bubbled through aqueous solution of Y, Z is formed. Z on gentle heating give back X. the X is
The compound A on heating gives a colourless gas and a residue that dissolved in water to obtain B. Excess of CO_(2) is bubbled through aqueous solution of B,C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound is:-
An element X burns in nitrogen to give a compound Y which on reaction with water gives a compound Z and a gas with a pungent smell. Z can be used during construction and white washing. When excess of CO_(2) is bubbled through Z, a compound P is formed which on heeating decomposes to give a compourless, odourless gas. identify X, Y, Z and P.
