- Deduce the identity of compound A and B, whose IR spectrum shows the following fingerprint and diagnostic signals.
Compound A
3500-2600 (broad) cm-1
1710 (intense) cm-1
1200 ( medium) cm-1
Compound B
3400-3200 (broad) cm-1
3100-2900 (broad) cm-1
1200 ( medium) cm-1
A.
Compound B is an alcohol
Compound A is a carboxylic acid
B.
Compound B is an alcohol
Compound A is an aldehyde
C.
Compound B is an aldehyde
Compound A is an carboxylic acid
D.
Compound A is an aldehyde
Compound B is an carboxylic acid
E.
Compound A is an alcohol
Compound B is a carboxylic acid
- Deduce the identity of compound A and B, whose IR spectrum shows the following important fingerprint and diagnostic signals.
Compound A
3100-3080 ( medium, sharp) cm-1
3000-2850 (strong, intense) cm-1
1610 (medium, sharp) cm-1
Compound B
3300-3250 ( strong, sharp) cm-1
3000-2850 (strong, intense) cm-1
2100 (medium, sharp) cm-1
A.
Compound A is an Alkene ( sp2 C-H present)
Compound B is an Alkyne ( sp C-H present)
B.
Compound B is an Alkene ( sp2 C-H present)
Compound A is an Alkyne ( sp C-H present)
C.
Compound A is an Alkene ( sp2 C-H absent)
compound B is an Alkene ( sp2 C-H present)
D.
Compound B is an Alkene ( sp2 C-H absent)
compound A is an Alkene ( sp2 C-H present)
E.
Compound A is an Alkane
compound B is an Alkene
- Which compounds would be consistent with the IR and NMR spectrum given below. (REFER TO LAB 2 PDF ATTACHED).
Draw the structure of the compound
Match all the peaks/ signals on the IR ; H-NMR and C-NMR spectra with the functional groups/ protons/ carbons present in the predicted molecule.