AIIMS 2005 Chemistry Nucleophilic Substitution Reactions MCQ Question with Solution

Among the following the strongest nucleophile is

A

C₂H₅SH

B

CH₃COO⁻

C

CH₃NH₂

D

NCCH₂⁻

Option A

Nucleophiles are those substances which can donate a pair of electrons.

Found an issue with this question?

CH₃OC₂H₅ and (CH₃)₃C – OCH₃ are treated with concentrated acidic iodide. The fragments after reactions obtained are

Arrange the following alkyl halides in decreasing order of the rate of β-elimination reaction with alcoholic KOH.

AIDS is caused by HIV that principally infects:

Assertion : The logic gate NOT can be built using diode. Reason : The output voltage and the input voltage of the diode have 180° phase difference.

In a semiconducting material the mobilities of electrons and holes are μₑ and μₕ, respectively. Which of the following is true?