The correct order of nucleophilicity among the following is:

(I) $C{H}_{3}CO{O}^{-}$

(II) $C{H}_{3}C{O}^{-}$

(III) CN^-

(IV) 

1. I > II > III > IV

2. IV > III > II > I

3. II > III > I > IV

4. III > II > I > IV

The compound which gives the most stable carbocation on dehydration:

$1.<mspace\; width="1em"></mspace>C{H}_3-CH-\left(C{H}_3\right)-<mspace\; width="1em"></mspace>C{H}_{2}OH$
$<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>$
$$

2. $C{H}_3<mspace\; width="1em"></mspace>-C{\left(C{H}_3\right)}_2-<mspace\; width="1em"></mspace>OH$

3. CH₃ - CH₂ - CH₂ - CH₂OH

$4.<mspace\; width="1em"></mspace>C{H}_3<mspace\; width="1em"></mspace>-CH\left(OH\right)-<mspace\; width="1em"></mspace>C{H}_2<mspace\; width="1em"></mspace>-<mspace\; width="1em"></mspace>C{H}_3$

Allyl isocyanide has:

1. 9 σ, and 4π-bonds.

2. 8 σ, and 5π-bonds

3. 9 σ, and 3π-bonds, 

4. 8 σ, and 3 π bonds

Which of the following acids has the smallest dissociation constant?

(1) CH₃CHFCOOH

(2) FCH₂CH₂COOH

(3) BrCH₂CH₂COOH

(4) CH₃CHBrCOOH

Which of the following resonating structures of 1-methoxy-1,3-butadiene is least stable?

1. \(\stackrel{\ominus}{\mathrm{C}} \mathrm{H}_2-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\stackrel{\oplus}{\mathrm{O}}-\mathrm{CH}_3\)
2. \(C H_2=\mathrm{CH}_2-\stackrel{\ominus}{\mathrm{C}} \mathrm{H}-\mathrm{CH}=\stackrel{\oplus}{\mathrm{O}}-\mathrm{CH}_3\)
3. \(\stackrel{\ominus}{\mathrm{C}} \mathrm{H}_2-\stackrel{\oplus}{\mathrm{C}} \mathrm{H}-\mathrm{CH}=\mathrm{CH}-\mathrm{O}-\mathrm{CH}_3\)
4. \(\mathrm{CH}_2=\mathrm{CH}-\stackrel{\ominus}{\mathrm{C}} \mathrm{H}-\stackrel{\oplus}{\mathrm{C}} \mathrm{H}-\mathrm{O}-\mathrm{CH}_3\)

The IUPAC name of the compound shown below is:

1. 2-bromo-6-chlorocyclohex-1-ene

2. 6-bromo-6-chlorocyclohexene

3. 3-bromo-1-chlorocyclohex-1-ene

4. 1-bromo-3-chlorocyclohexene

Which of the following structures are superimposable?

(1) 

(2) 

(3) 

(4) 

(1) 1 and 2

(2) 2 and 3

(3) 1 and 4

(4) 1 and 3

The production of an optically active compound from a symmetric molecule without resolution in termed as:

(1) Walden inversion

(2) partial racemisation

(3) asymmetric synthesis

(4) partial resolution

Find the type of isomerism shown by buta-1,3-diene and but-2-yne.

1. Position isomers

2. Functional isomers

3. Chain isomers

4. Tautomers

Find the number of different substitution products possible when ethane reacts with chlorine
in the presence of sunlight.