Carbonyl

Question 1

Why carbonyls have higher mp BP?

Answer 1

C=O polar strong pdpd but alkane idid

Question 2

Why carbonyl solubility decrease with more Carbon atoms?

Answer 2

Same as alcohol
Non-polar R group makes the alcohol more hydrophobic and energy comes from idid instead of hydro bond between h2o and c=o which is not enough go overcome hydro bond between h20 and oh respectively

Question 3

Why carbonyl more reactive for nucleophilic reagents than alkane?

Answer 3

C electron deficient(delta +) and O is electronegative but c=c Is electron rich

Question 4

Why aldehyde more reactive than ketone?

Answer 4

Stearic hindrance for ketones

Question 5

How to test for aldehydes

Answer 5

Tollens reagent nh3(aq) +AgNo3
With heat
Silver mirror Ag+RCOO-

Question 6

How to test for aliphatic aldehyde?( no benzene/cyclic directly on the aldehyde)

Answer 6

Fehlings reagent cu2+ 5oh- with heat
Cu2O+RCOO-

Question 7

How to test for carbonyl

Answer 7

2,4DNPH heat

Question 8

How test for methyl aldehyde, aldehyde with CHi1,2or3,
c to ch3 oh h r

Answer 8

I2 and NaOh heat