Order of Preference of Functional Groups

Q.

The correct decreasing order of priority for functional groups of organic chemistry in the IUPAC nomenclature system is:

1. > > >

2. > > >
   

3. > > >

4. > > >

Q.

Which of the following groups is/are always taken as a substituent in IUPAC nomenclature of organic compounds?

1. 

2. 

3. 

4. 

Q.

Write the structures of the following compounds:

Prop-1-ene

Q.

The IUPAC name of CH₃CH₂O-CH₂-CHOH-CH₃ is:

1. 3-Ethoxy-2-propanol

2. 2-Ethoxy-2-propanol

3. 3-Ethoxy-3-propanol

4. 2-Ethoxy-3-propanol

Q.

The decreasding order of priority for the following functional groups (for IUPAC nomenclature) is:
(1) $-CON{H}_2$ > (2) $-C\equiv N$ > (3) $-CHO$ > (4) $-\stackrel{O}{\stackrel{||}{C}}-$

1. (a) 2 > 1 > 4 > 3

2. (b) 3 > 4 > 1 > 2

3. (c) 1 > 2 > 4 > 3

4. (d) 1 > 2 > 3 > 4

Q. CH3CH2CHCl2\overset{}{\xrightarrow{3NaNH2} (A)\xrightarrow{EtBr}(B)}\xrightarrow{HgSO4/dil H2SO4}\lbrack Major Product\rbrack Product (C) is(1)2-butane(2) 2-pentanone(3) 3-pentanone(4) pentanal

Q. Identify the functional group in the given compound.

Q. The decreasing order of priority for the following functional groups is
I. -COOH
II. $-S{O}_{3}H$
III. -COOR
IV. -COCl

1. (IV) > (III) > (II) > (I)
2. (I) > (II) > (III) > (IV)
3. (II) > (I) > (III) > (IV)
4. (IV) > (III) > (I) > (II)

Q.

Select the compound with incorrect principal group:-

1. (a)

2. (c)

3. 

4. (d)