ICA-II OCT 2023 1st B.Sc

Among the following which one is a nucleophile ?

• NO₂⁺

• CH₃⁺

• Al₃⁺

• H₂O

Thermoflask is an example for .................................

• Open System

• Closed system

• Isolated System

• None

The carbocations are involving in which mechanism ?

• SN2

• SN1

• Free radical

• E2

The transition states are involving in which mechanism ?

• SN1

• SN2

• E1

• None

Among the following which one is electrophile ?

• Cl-

• NO2+

• H2O

• I-

Among the following which one is showing more electron affinity ?

• Na+

• I

• I-

• Be

Which one is more electronegative in the following ?

• I

• Na

• Ne

• F

Nucleophilic addition will give..........................intermediate

• Tetrahedral

• Pentacoordinate

• linear

• none

Which one is aprotic solvent ?

• Methanol

• Water

• Diethyl ether

• Ethanol

Which one is protic solvent ?

• DMF

• Diethylether

• DMSO

• i-propanol