Chemistry IR spectroscopy IAS question.

I have problem in 3.e.i.
The answer is 'C-H of aldehyde'.Can anyone help,how will i get to that answer.
Will IAS unit 3 give us extra data booklet for IR wavelength values.

And don't call me surely.

What does that mean?

Hopefully, you'd worked out that it was an alcohol to start with, i.e. propan-1-ol or -2-ol.
Distilled with acidified dichromate would produce propanal or propanone (respectively).
The peak stated is only present in aldehydes.

You must Shirley be given the data booklet of IR values.

And don't call me surely.

You've not seen Airplane! ?

No IR data wasn't give.the specimen doesn't have it.

Could it be that we used distillation technique and it is only used for aldehyde.Ketone has no effect of reflux or distillation.Still in doubt with my theory

This from new IAS specimen paper of Chemistry Unit 3.
I have problem in 3.e.i.
The answer is 'C-H of aldehyde'.Can anyone help,how will i get to that answer.
Will IAS unit 3 give us extra data booklet for IR wavelength values.

this is the specimen paper right?
i also wrote aldehyde, this is because previously they told me to that (the alcohol has been distillated) and we know when we distill an alcholol we get aldehyde

This isn't quite right.

If you have a primary alcohol, it can be converted into either an aldehyde (using distillation) or a carboxylic acid (using reflux).

A secondary alcohol can only be converted into a ketone using either distillation or reflux, so you might as well use reflux as it will have a faster rate.

ur right,
but i dont think we have ketones in our spec ( at least i never came across)
we need to know how to make aldehydes and carboxylic acid.
that is why i assumed the aldehyde thing

sorry but ketone is in our specs.
And the question d.ii. we were told to draw isomers of which one was a ketone

just checked the edexcel website, they only give data booklet book or unit 2,4,5

a sigh of relief