Question

Select the appropriate reagent for each of the chemical reactions. [O] represents an oxidizing agent, such as K,Cr,0, (H) represents a reducing agent, such as H, H₂ H₂ H₂ H2C-C-C-C-OH насн Học––––CH, G, H, – – – –CH, OH Answer Bank

Answer 1

[O] represents an oxidizing agent

[H] represents a reducing agent

1)

First reaction aldehyde is converted to alcohol i.e, it reduced. (unsaturated C=O converted to saturated C-O)

Here we use a reducing agent, [H]

2)

In this reaction secondary alcohol is converted to ketone, i.e, it oxidized (saturated C-O converted to unsaturated C=O)

Here we use an oxidizing agent, [O]

NOTE: If a compound become unsaturated from saturated , then it is called oxidized.

If a compound become saturated from unsaturated , then it is called reduced.

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