The major products obtained during ozonolysis of 2, 3-dimethyl-1-butene and subsequent reductions with Zn and H₂O are

• methanoic acid and 2-methyl-2-butanone

• methanal and 3-methyl-2-butanone

• methanol and 2, 2 -dimethyl-3-butanone

• methanoic acid and 2-methyl-3-butanone

1,4-dimethylbenzene on heating with anhydrous AlCl₃ and HCl produces

• 1, 2-dimethylbenzene

• 1, 3-dimethylbenzene

• 1,2, 3-trimethylbenzene

• ethylbenzene

Best reagent for nuclear iodination of aromatic compounds is

• KI/CH₃COCH₃

• I₂/CH₃CN

• KI/ CH₃COOH

• I₂/ HNO₃

The total number of aromatic species generated in the following reactions is

• zero

• 2

• 3

• 4

The IUPAC name of the following molecule is

• 5,6-dimethylhept-2-ene

• 2,3-dimethylhept-5-ene

• 5,6-dimethylhept-3-ene

• 5-iso-propylhex-2-ene

The 4th higher homologue of ethane is

• butane

• pentane

• hexane

• heptane

The order of decreasing ease of abstraction of hydrogen atoms in the following molecules

• H_a > H_b > H_c

• H_a > H_c  > H_b

• H_b > H_a > H_c

• H_c > H_b > H_a

18.

Reaction of benzene with Me₃CCOCl in the presence of anhydrous AlCl₃ gives

• 

• 

• 

• 

Treatment of  with NaNH₂/ liq.NH₃ gives

The best method for the preparation of 2, 2-dimethylbutane is via the reaction of

• Me₃CBr and MeCH₂Br in Na/ether

• (Me₃C)₂CuLi and MeCH₂Br

• (MeCH₂)₂CuLi and Me₃CBr

• Me₃CMgI and MeCH₂I