Question

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1.
Why is the conversion of ethanol to ethanoic acid an oxidation reaction?
athime is burnt for welding. Can you tell why??​

Answer 1

1)The conversion of ethanol to ethanoic acid takes place by the addition of nascent oxygen atoms to ethanol in a number of steps in the presence of acidified solution of an oxidizing agent such as K2Cr2O7 or KMnO4.

First, Ethanol is oxidized to Ethanal.

                                    (acidified K2Cr2O7/ H+ ions)

Equation is:   C2H5OH + [O] --------------> CH3CHO + H2O

Then, Ethanal is oxidized to Ethanoic acid.

                                           (acidified K2Cr2O7/ H+ ions)

Equation is:    CH3CHO + [O]-------------> CH3COOH

Each step involves the addition of nascent oxygen in acidic medium, so it is an example of oxidation.

2) Ethyne gas or acetylene mixed with excess of oxygen gas forms a highly inflammable mixture called oxyacetylene which has a very high calorific value and burns at very high temperatures of about 3000 degrees Celsius, hot enough to easily melt metals, hence it is used in the welding of metals.

PLEASE MARK AS BRAINLIEST, I WROTE IT ALL MYSELF.