What is the secondary suffix for aldehyde?

-al

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-one

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-oic acid

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-oate

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Solution

The correct option is A -al
For writing the IUPAC name of aldehydes, the suffix -al is added after the name of a parent alkane. The last letter "e" from the name of the parent alkane is removed.

For example, the IUPAC name of formaldehyde is written as "methanal".

So, the correct answer is $A$

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In IUPAC name of the following compound, the prefix bacause of -Br and suffix bacause of C = 0 will be respectively

C H_{3} - C O - C O O H

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