Aldehydes, Ketones And Carboxylic Acids

- It is always better to start confident. Let's practice easy questions to serve the purpose.
1
2
3
The weakest acid among the following is__________.
A
B
C
D
4
The group in a carboxylic acid can be replaced by hydrogen atom by heating the acid with:
A
and
B
in the presence of nickel
C
sodalime
D
bromine and concentrated aqueous alkali
5
Benzoic acid does not undergo Friedel-Crafts reaction due to ------ of the benzene ring by the ------ effect of group.
A
Activation, electron donating
B
Activation, electron withdrawing
C
Deactivation, electron donating
D
Deactivation, electron withdrawing