Q1) -What is first organic free radical?
a) Triphenylmethyl radical b) Triphenylethyl radical c) hydroxyl radical d) Tetraphenyl radical
Q2) -Triphenymethyl radical discovered by…
a) Marie Curie b) Moses Gomberg c) Hans Fischer d) none of these
Q3) -How many step involves in free mechanism?
a) 1 b) 2 c) 3 d) 4
Q4) – Which reaction is involves the allylic Or benzylic bromination of hydrocarbons using NBS in presence of light / CCl4 as a solvent?
a) McMurray reaction b) Gomberg reaction c) Wohl-Ziegler bromination reaction d)bromination reaction
Q5) -In which reaction use of silver salts of carboxylic acid react with a hydrogen to produce an organic halide?
a) Ullmann Reaction b) Gomberg Reaction c) Wohl-Ziegler bromination Reaction d) Hunsdiecker Reaction
Correct answer —– Q1) a Q2) -b Q3) c Q4) c Q5) d
chemistry mcq 