Write down IUPAC name of the following organic compounds. [1+1] i) CH3 O CH2 CH2 OCH3… – Chemistry NEB 2074 (old course) Solution

i) The given compound is $CH X_{3} - O - CH X_{2} - CH X_{2} - OCH X_{3}$ . This is an ether. The longest carbon chain is 3 carbons long, and there are two methoxy groups attached to the middle carbon. The IUPAC name is 1,3-dimethoxypropane.

1,3-Dimethoxypropane1,3-Dimethoxypropane

Correct structure of the given ether (CH₃–O–CH₂–CH₂–OCH₃) with methoxy groups at positions 1 and 3.

ii) The given compound is $CHCl X_{3}$ , which is chloroform. The IUPAC name is trichloromethane. This is because the compound has one carbon atom bonded to three chlorine atoms. The prefix "tri-" indicates three chlorine atoms, and "meth-" indicates one carbon atom. The suffix "-ane" indicates it is an alkane derivative.

Trichloromethane (CHCl₃)Trichloromethane (CHCl₃)

Structure of chloroform with one carbon bonded to three chlorine atoms.

Write down IUPAC name of the following organic compounds. [1+1] i) CH3 O CH2 CH2 OCH3 ii) CHCl3

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