Need help with organic chemistry Questions. Have test coming up and need help...

T

TRISHA

New member
...on a few..Thanx? 1.Formaldehyde and acetaldehyde contain, respectively, one and two carbon atoms. True or False and Why?

2.The simplest ketone contains two carbon atoms. True or False and Why

3.Which of the following comparisons illustrates the structural difference between an aldehyde and a ketone?
Which one.....
-H versus -OH
-H versus -R
-OH versus -R
-OH versus -OR

4. Aldehyde compounds contain a carbonyl group. True or False

I need help with these and would greatly appreciate any feedback before my huge test.. Thanks a million.
 
formaldeyde is HCOH ( one carbon atom) and acetaldeyde is CH3COH
( two carbon atoms)
true

aldeyde RCOH
ketone RCOR
- H versus -R

aldeyde contains a carbonyl group C=O
true
 
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