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A metal carbonate 'X' on reacting with an acid gives the carbonate back. On the other hand, a gas 'Z' that is obtained by reaction of black oxide 'A' with conc. HCl on heating reacts with solid 'Y' to give a compound 'B' which is used for disinfecting drinking water. Identify 'X','Y' and 'Z'?
Most Upvoted Answer
A metal carbonate 'X' on reacting with an acid gives the carbonate bac...
X is calcium carbonate
Y is calcium hydroxide
Z is belching powder
Community Answer
A metal carbonate 'X' on reacting with an acid gives the carbonate bac...
Identification of 'X', 'Y' and 'Z'
Metal carbonate 'X' is likely to be calcium carbonate (CaCO3) as it is a common metal carbonate that reacts with acids to form the carbonate back. When calcium carbonate reacts with an acid, it forms calcium chloride, carbon dioxide, and water. The reaction can be represented as:
CaCO3 + 2HCl → CaCl2 + CO2 + H2O

Identification of 'Y'
The solid 'Y' that reacts with gas 'Z' to form compound 'B' used for disinfecting drinking water is likely to be chlorine (Cl2). When chlorine gas reacts with a compound such as calcium hypochlorite (Ca(ClO)2), it forms calcium chloride (CaCl2) and hypochlorous acid (HClO), which is commonly used to disinfect drinking water. The reaction can be represented as:
Ca(ClO)2 + Cl2 → CaCl2 + 2HClO

Identification of 'Z'
The gas 'Z' that is obtained by the reaction of black oxide 'A' with concentrated hydrochloric acid (HCl) and heating is likely to be chlorine gas (Cl2). This reaction is a common method for preparing chlorine gas in the laboratory. The reaction of black oxide 'A' with concentrated HCl can be represented as:
2HCl + MnO2 → Cl2 + MnCl2 + H2O
In conclusion, 'X' is calcium carbonate, 'Y' is likely to be chlorine, and 'Z' is chlorine gas.
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A metal carbonate 'X' on reacting with an acid gives the carbonate back. On the other hand, a gas 'Z' that is obtained by reaction of black oxide 'A' with conc. HCl on heating reacts with solid 'Y' to give a compound 'B' which is used for disinfecting drinking water. Identify 'X','Y' and 'Z'?
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A metal carbonate 'X' on reacting with an acid gives the carbonate back. On the other hand, a gas 'Z' that is obtained by reaction of black oxide 'A' with conc. HCl on heating reacts with solid 'Y' to give a compound 'B' which is used for disinfecting drinking water. Identify 'X','Y' and 'Z'? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A metal carbonate 'X' on reacting with an acid gives the carbonate back. On the other hand, a gas 'Z' that is obtained by reaction of black oxide 'A' with conc. HCl on heating reacts with solid 'Y' to give a compound 'B' which is used for disinfecting drinking water. Identify 'X','Y' and 'Z'? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A metal carbonate 'X' on reacting with an acid gives the carbonate back. On the other hand, a gas 'Z' that is obtained by reaction of black oxide 'A' with conc. HCl on heating reacts with solid 'Y' to give a compound 'B' which is used for disinfecting drinking water. Identify 'X','Y' and 'Z'?.
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