EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an example of a thermal decomposition reaction?
A
carbonates give off carbon dioxide when heated
B
carbonates give off oxygen when heated
C
wood burning
D
heating magnesium
Explanation: 

Detailed explanation-1: -In a thermal decomposition reaction, there is only one reactant, but two or more products. For example, when copper carbonate is heated, it breaks down to produce copper oxide and carbon dioxide.

Detailed explanation-2: -A common example of a thermal decomposition reaction is provided below. When heated, calcium carbonate decomposes into calcium oxide and carbon dioxide. This process is employed in the manufacturing of quick lime, which is an important substance in many industries.

Detailed explanation-3: -All the carbonates in this Group undergo thermal decomposition to give the metal oxide and carbon dioxide gas. Thermal decomposition is the term given to splitting up a compound by heating it. All of these carbonates are white solids, and the oxides that are produced are also white solids.

Detailed explanation-4: -When calcium carbonate is heated, it decomposes into calcium oxide and carbon dioxide, which is a common example of a thermal decomposition reaction.

Detailed explanation-5: -Calcium carbonate decomposes on heating to form calcium oxide and carbon dioxide.

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