The product formed in the following reaction is

4-nitrotoluene is treated with bromine to get compound 'P' which is reduced with Sn and HCl to get compound 'Q'. 'Q' is diazotised and the product is treated with phosphinic acid to get compound 'R'. 'R' is oxidised with alkaline solution KMnO₄ to get the final product. Identify the final product.

• 2-bromobenzoic acid

• 2-bromo-4-hydroxybenzoic acid

• benzoic acid

• 3-bromobenzoic acid

Which one of the following is an allylic halide?

• 2-chlorobutane

• Chloroethene

• 3-bromopropene

• 2-chlorotoluene

Which one of the following undergoes iodoform test?

• Propanal

• Ethanal

• Benzophenone

• Benzaldehyde

The chelating ligand used to remove excess of copper and iron in chelate therapy is

• D-penicillamine

• oxalate ion

• EDTA

• ethylenediamine

The correct decreasing order of reactivity for a given alkyl (R) group in both S_N1 and S_N2 reaction mechanisms is

• R - I > R - Br > R - Cl > R - F

• R - I > R - Cl > R - Br > R - F

• R - F > R - Cl > R - Br > R - I

• R - F > R - I > R - Cl > R - Br

Chloroform reacts with oxygen in the presence of light to give

• carbon tetrachloride

• carbonyl chloride

• methyl chloride

• acetaldehyde

Which one of the following is not expected to undergo iodoform reaction?

• Propan-2-ol

• Diphenyl methanol

• 1-phenylethanol

• 2-butanol

549.

Which one of the following halogen compounds is difficult to be hydrolysed by S_N1 mechanism?

• Tertiary butyl chloride

• lsopropyl chloride

• Benzyl chloride

• Chlorobenzene

Which one of the following is not an allylic halide?

• 4-bromopent-2-ene

• 3-bromo-2-methylbut-1-ene

• 1-bromobut-2-ene

• 4-bromobyt-1-ene