Alkane C-H C-C Alkene -C-H C-C RCH-CH2 R-C-CH 3020-3100 1640-1680 910 and 990 28

Question

Alkane C-H C-C Alkene -C-H C-C RCH-CH2 R-C-CH 3020-3100 1640-1680 910 and 990 2850-2960 800-1300 2100-2260 Alcohol O-H C-O Alkyl balide C-CI C-Br 3400-3650 600-800 1050-1150 C-H C-C Ketone Non-conjugated C-O 1715 ConjugatedC-01690 Amlde N-H 3300-3500 3030 1660-2000 1430-1600 C-N 1030-1230 Non-coujugated C-O 1730 ConjugatedC-o1705 Carboxylic acld C-o O-H 1710 1690 Ester C-o Nitro NO, 2500-3100 1735 Nitrile 2210-2260 1540 ive one IR absorption frequency or range you could use to distinguish between tfllowing two isomers, and designate which isomer will exhibit this absorption by a preceding letter. e.g. 'a1700 or"b1640-1680" ake frequencies from the table given above. a H2C=-CHOCHs and b CH2CH2CHO Try Another Version 2 item attempts remaining

Explanation / Answer

Both a & b are functional group isomers (unsaturated ether, methyl vinyl ether & aldehyde, propanaldehyde)

a has peaks at 3080, 2950, 1640& 1180 for =CH, C-H, C=C and C-O stretches respectively

While b has peaks at 2965 for C-H stretch, 2760 & 2840 for aldehyde C-H and important peak is for carbonyl group at 1730 cm-1.

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