61.

Which of the following undergoes nucleophilic substitution exclusively by S_N1 mechanism?

• Benzyl chloride

• Ethyl chloride

• Chlorobenzene

• lsopropyl chloride

Which of the following organic halogen compounds undergoes hydrolysis with aqueous NaOH predominantly by Sy1 mechanism?

• Ethyl iodide

• Methyl chloride

• lsopropyl chloride

• Benzyl chloride

Under basic condition which one suffers elimination the most?

• (CH₃)₃CCI

• (CH₃)₂CHCH₂CI

• CH₃CH₂CHCICH₃

• CH₃CH₂CH₂CH₂CI

Strongest nucleophile is

• RNH₂

• ROH

• C₆H₅O^-

• CH₃O^-

Which of the following compound gives iodoform test?

• CH₃CN

• CH₃OH

• CH₃COCH₃

• C₆H₅OH

What happens if CCl₄ is treated with AgNO₃ ?

• A white ppt. of AgCl will form

• NO₂ will be evolved

• CCl₄ will dissolve in AgNO₃

• Nothing will happen

Identify the end product:

An asymmetric carbon atom is which

• attached three atoms or groups are different

• attached all the atoms or groups are different

• attached two atoms or groups are different

• attached all the atoms or groups are the same

Which of the following isomeric heptanes can yield seven different monochlorinated products upon free radical chlorination?

• 3-methyl hexane

• 2, 2-dimethyl pentane

• 2-methyl hexane

• 2, 3-dimethyl pentane

Which of the following compounds reacts slower than benzene in electrophilic brornination?