Identify the type of reaction when ethanol is burnt in air to form carbon dioxide, water and releases heat:
A
Redox reaction
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B
Combustion reaction
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C
Esterificaton reaction
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D
Synthesis reaction
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Solution
The correct options are A Redox reaction B Combustion reaction Ethanol(C2H5OH) burns in the presence of oxygen(O2) to form carbon dioxide(CO2) and water(H2O) along with the evolution of heat.This is a combustion reaction and the equation can be written as: C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(l)+heat