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1. Why is the conversion of ethanol to ethanoic acid an oxidation reaction?
A molecule of ethanol includes hydrogen atoms, while that of ethanoic acid includes four hydrogen atoms since oxidation involves the removal of hydrogen; therefore, the conversion of ethanol to ethanoic acid is an reaction.
\(CH_3CH_2OH + 2[O]\rightarrow CH_3COOH\)
2. A mixture of oxygen and ethyne is burnt for welding. Can you tell why a mixture of ethyne and air is not used?
If ethyne is burnt in oxygen, it produces a clean flame with a high temperature (3000 °C ) because of the complete of ethyne. Thus, the flame is used for welding, and it is impossible to reach such a high temperature with air. This is the reason why ethyne and air are not combined for welding.
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