Write down the structural formulas and names of the first four aldehydes with a linear chain of carbon atoms.

O
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H – C – H – methanal;

O
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CH3 – C – H – ethanal;

O
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CH3 – CH2 – C – H – propanal;

O
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CH3 – CH2 – CH2 – C – H – butanal.



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