Question

Fill in the following blanks:
1). In the UV spectrum,the ethylenic chromophore shows an absorption band below-------------nm.
2). In the IR spectrum, the cis isomer of internal alkenes gives band at-----------cm-1.

Answer 1

Answer on Question #74806 – Chemistry – Organic Chemistry

Task:

Fill in the following blanks:

1). In the UV spectrum, the ethylenic chromophore shows an absorption band below--- nm.

2). In the IR spectrum, the cis isomer of internal alkenes gives band at---cm-1.

Solution:

1)

C=C: 175 nm

2) Internal alkene: An alkene which is not terminal, i.e., the carbon-carbon pi bond is not at the end of the carbon chain.

For example:

cis-isomer of internal alkene