A hydrocarbon has three carbon atoms. Write down its molecular formulae as
aldehyde derivative

Explanation

To find the molecular formula of a hydrocarbon with three carbon atoms as an aldehyde derivative, we can follow these steps:

### Step 1: Understand the Structure of Hydrocarbons
Hydrocarbons are organic compounds that consist solely of carbon (C) and hydrogen (H) atoms. In this case, we need a hydrocarbon that contains three carbon atoms.

### Step 2: Identify the Aldehyde Group
An aldehyde is characterized by the presence of a functional group known as the aldehyde group, which has the formula -CHO. This group consists of one carbon atom, one hydrogen atom, and one oxygen atom.

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