The isomerisation of 1-butyne to 2-butyne can be achieved by treatment with

• hydrochloric acid

• ammoniacal silver nitrate

• ammoniacal cuprous chloride

• ethanolic potassium hydroxide

The reduction of benzenediazonium chloride to phenyl hydrazine can be accomplished by

• SnCl₂, HCl

• Na₂SO₃

• CH₃CH₂OH

• H₃PO₂

The major product(s) obtained form the following reaction of 1 mole of hexadeuteriobenzene is/are

The conversion of CH₃-CH₂-COOH to

accomplished by

• SOCl₂, LiAlH₄, ethylene glycol

• SOCl₂, KMnO₄, NH₂NH₂

• SnCl₂, HCl, Na₂SO₃

• HCl, SnCl₂, ethylene glycol

Ozonolysis of an alkene produces only one dicarbonyl compound. The structure of the alkene is

• H₃C - CH = CH - CH₃

• 

• 

• CH₃ - CH = CH - CH = CH₃

From the following compounds, choose the one which is not aromatic.

Identify X in the following sequence reactions

268.

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