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Standard X

Chemistry

Thermal Dissociation of Nitric Acid

A compound X ...

Question

A compound $X$ on heating gives a colourless gas. The residue is dissolved in water to give $Y$ . To the aqueous solution of $Y$ , $C O_{2}$ is passed and it produces $Z$ , which on gentle heating gives back $X$ . Compound $X$ is:

$N a_{2} C O_{3}$

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$C a C O_{3}$

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$C a (H C O_{3})_{2}$

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$N a H C O_{3}$

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Solution

The correct option is B
$C a C O_{3}$

$C a c O_{3} Δ - \to C a O + C O_{2} ↑ C a O H_{2} O - - \to C a (O H)_{2} (Y) 2 C O_{2} - -- \to C a (H C O_{3})_{2} (Z) C a (H C O_{3})_{2} Δ - \to C a C O_{3} + H_{2} O + C O_{2} ↑$

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Similar questions

A compound $X$ on heating gives a colourless gas. The residue is dissolved in water to give $Y$ . To the aqueous solution of $Y$ , $C O_{2}$ is passed and it produces $Z$ , which on gentle heating gives back $X$ . Compound $X$ is:

Q. A compound

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C O_{2}

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is bubbled through aqueous solution of

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Q. A compound X on heating gives a colourless gas. The residue is then dissolved in water to obtain Y. Excess

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is bubbled through the aqueous solution of Y, then Z is formed. Z on gentle heating gives back X. Then X is:

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A compound X on heating gives a colourless gas. The residue is dissolved in water to give Y. To the aqueous solution of Y, CO2 is passed and it produces Z, which on gentle heating gives back X. Compound X is:

The correct option is B CaCO3 CacO3Δ−→CaO+CO2↑CaOH2O−−→Ca(OH)2(Y)2CO2−−−→Ca(HCO3)2(Z)Ca(HCO3)2Δ−→CaCO3+H2O+CO2↑

A compound $X$ on heating gives a colourless gas. The residue is dissolved in water to give $Y$ . To the aqueous solution of $Y$ , $C O_{2}$ is passed and it produces $Z$ , which on gentle heating gives back $X$ . Compound $X$ is:

The correct option is B
$C a C O_{3}$

$C a c O_{3} Δ - \to C a O + C O_{2} ↑ C a O H_{2} O - - \to C a (O H)_{2} (Y) 2 C O_{2} - -- \to C a (H C O_{3})_{2} (Z) C a (H C O_{3})_{2} Δ - \to C a C O_{3} + H_{2} O + C O_{2} ↑$