A metal carbonate X on treatment with a mineral acid liberates a gas which when passed through aqueous solution of a substance Y gives back X. The substance Y on reaction with the gas obtained at anode during electrolysis of brine gives a compound Z which can decolorise coloured fabrics. The compounds X, Y and Z respectively are.

C a C O_{3}, C a (O H)_{2}, C a O C l_{2}

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C a (O H)_{2}, C a O, C a O C l_{2}

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C a C O_{3}, C a O C l_{2}, C a (O H)_{2}

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C a (O H)_{2}, C a C O_{3}, C a O C l_{2}

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Solution

The correct option is B $C a C O_{3}, C a (O H)_{2}, C a O C l_{2}$
$X$ is carbonate i.e $C a C O_{3}$ . It reacts with mineral acid $H C l$ and it liberated $C O_{2}$ gas.
$C a C O_{3} + 2 H C l \to C a C l_{2} + C O_{2} + H_{2} O$

$Y$ is $C a (O H)_{2}$ .
$C a (O H)_{2} + C O_{2} \to C a C O_{3} + H_{2} O$

$Z$ is $C a O C l_{2}$
$C a (O H)_{2} + C l_{2} \to C a O C l_{2} + H_{2} O$

Option A is correct.

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Similar questions

A metal carbonate X on treatment with a mineral acid liberates a gas which when passed through aqueous solution of a substance Y gives back X. The substance Y on reaction with the gas obtained at anode during electrolysis of brine gives a compound Z which can decolorise coloured fabrics. The compounds X, Y and Z respectively are

Q. A metal carbonate

X

on reacting with an acid gives a gas which when passed through a solution

Y

gives the carbonate back. On the other hand, a gas

G

that is obtained at the anode during electrolysis of brine is passed on dry

Y

, it gives a compound

Z

, used for disinfecting drinking water. Identity

X, Y, G

and

Z

Q. A metal carbonate X on reacting with an acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at the anode during electrolysis of brine is passed on dry Y, it gives a compound Z, used for disinfecting drinking water. Identify X, Y, G and Z.

Q. A metal carbonate X on reacting with an acid gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at anode during electrolysis of brine is passed on dry Y, it gives a compound Z,used for disinfecting drinking water. Identity X, Y, G and Z. Also,write the chemical reactions involved.

Question 45.
A metal carbonate X on reacts with acid and gives a gas which when passed through a solution Y gives the carbonate back. On the other hand, a gas G that is obtained at the anode during electrolysis of brine is passed on dry Y, it gives a compound Z, used for disinfecting drinking water. Identify X, Y, G and Z.

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The correct option is B CaCO3,Ca(OH)2,CaOCl2X is carbonate i.e CaCO3. It reacts with mineral acid HCl and it liberated CO2 gas. CaCO3+2HCl→CaCl2+CO2+H2OY is Ca(OH)2. Ca(OH)2+CO2→CaCO3+H2OZ is CaOCl2Ca(OH)2+Cl2→CaOCl2+H2O Option A is correct.