B.PHARM I YEAR II SEM(2022-23 BATCH)

Migration of hydrogen with a pair of electron is

• Hydride shift

• Alkyl shift

• 1,2 shift

In the IUPAC system which one has the least priority

• ketone

• Alkyne

• Alkene

Waldern inversion takes place n

• SN1

• SN2

• Both

Halogenation of Alkanes is also known as

• substitution reaction

• free radical reaction

• elimination reaction

E1 reaction depends on

• concentration of substrate

• concentration of nucleophile

• both 1& 2

E1 Stands for -----------------

• bimolecular reaction

• unimolecular reaction

• trimolecular

Pyrolysis of alkane is also known as

• Cracking

• explosive

• corrosive

In SN2 reaction the rate of raction depends upon?

• concentration of substrate only

• concentration of nucleophile only

• both A & B

Epoxides are also called as

• Ethers

• Ketones

• oxirnes

The functional group of ESTER is

• R- SCN

• R-COOR

• R-O-R