In which of the following reactions carbon-carbon bond formation takes place ?
Cannizaro
Reimer - Tiemann
HVZ reaction
Schmidt reaction
Which gives only mono - substituted product ?
o - dinitrobenzene
m - dinitrobenzene
p - dinitrobenzene
Nitrobenzene
Order of boiling point is :
HF > HI > HBr > HCl
HF > HBr > HI > HCl
HCl > HBr > HI > HF
HCl > HI > HBr > HF
If the enolate ion combines with carbonyl group of ester , we get :
aldol
, - unsaturated ester
- keto aldehyde
acid
Which of the following compounds will react with NaHCO3 solution to give sodium salt and carbon dioxide ?
Acetic acid
n - hexanol
Phenol
Both (b) and (c)
Which will give chiral molecule ?
CH3COCl
C2H5CHO
(CH3)2CHC2H5
CH3-CH=C(CH3)2
B.
C2H5CHO
C2H5CHO + CH3MgBr
Propionaldehyde give chiral molecule on reaction with Grignard reagent
In resulting product C* is an asymmetric carbon atom as all the four valencies are satisfied with four different atoms or groups .