1.

[─R─CO─] b) [─O─R─CO─]n$#

A. [O─CR─O─]<sub>n</sub>
B. [─O─R─CO─]<sub>n-1</sub>
Answer» B. [‚Äö√Ñ√∂‚àö√Ü‚àö√ëO‚Äö√Ñ√∂‚àö√Ü‚àö√ëR‚Äö√Ñ√∂‚àö√Ü‚àö√ëCO‚Äö√Ñ√∂‚àö√Ü‚àö√ë]<sub>n-1</sub>


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