What happens when an aldehyde is treated with lithium aluminium hydride?

Primary alcohol is formed

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Secondary alcohol is formed

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Tertiary alcohol is formed

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Solution

The correct option is A Primary alcohol is formed
$L i A l H_{4}$ acts as a reducing agent which reduces an aldehyde by adding hydrogen atoms to it result in the formation of a primary alcohol.
$C H_{3} C H O L i A l H_{4} ⟶ C H_{3} C H_{2} O H$

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L l A l H_{4}

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