Question

The stretching frequency for CO, CN– and NO in IR spectrum will be of the order : (A) CN– > CO > NO (B) CO > CN– > NO (C) NO > CO > CN– (D) CO > NO > CN–​

Answer 1

Explanation:

Approximate Infrared Stretching Frequencies

B-H

2400 cm-1

C-H

3000 cm-1

N-H

3400 cm-1

O-H

3600 cm-1

F-H

4000 cm-1

Al-H

1750

Si-H

2150

P-H

2350

S-H

2570

Cl-H

2890

Ge-H

2070

As-H

2150

Se-H

2300

Br-H

2650