Q 1 :

IUPAC name of following compound (P) is:                  [2024]

• 1,1-Dimethyl-3-ethylcyclohexane

   

• 3-Ethyl-1,1-dimethylcyclohexane

   

• 1-Ethyl-3,3-dimethylcyclohexane

   

• 1-Ethyl-5,5-dimethylcyclohexane

   

Q 2 :

Cyclohexene  is ______ type of an organic compound.                       [2024]

• Alicyclic

   

• Benzenoid aromatic

   

• Benzenoid non-aromatic

   

• Acyclic

   

Q 3 :

The molecular formula of second homologue in the homologous series of mono carboxylic acids is ______.               [2024]

• ${\mathrm{C}}_3{\mathrm{H}}_6{\mathrm{O}}_2$

   

• ${\mathrm{C}}_2{\mathrm{H}}_4{\mathrm{O}}_2$

   

• ${\mathrm{CH}}_2\mathrm{O}$

   

• ${\mathrm{C}}_2{\mathrm{H}}_2{\mathrm{O}}_2$

   

Q 4 :

Bond line formula of $\mathrm{HOCH}{\left(\mathrm{CN}\right)}_2$ is:                           [2024]

Q 5 :

According to IUPAC system, the compound  is named as                 [2024]

• Cyclohex-1-en-3-ol

   

• Cyclohex-2-en-1-ol

   

• Cyclohex-1-en-2-ol

   

• 1-Hydroxyhex-2-ene

   

Q 6 :

Structure of 4-Methylpent-2-enal is:                           [2024]

Q 7 :

IUPAC name of following compound is:                             [2024]

• 2-Aminopentanenitrile

   

• 2-Aminobutanenitrile

   

• 3-Aminobutanenitrile

   

• 3-Aminopropanenitrile

   

Q 8 :

Given below are two statements:                                                            [2024]

Statement I: IUPAC name of

is 7-hydroxyheptan-2-one.

Statement II: 2-oxoheptan-7-ol is the correct IUPAC name for above compound.

In the light of the above statements, choose the most appropriate answer from the options given below:

• Statement I is correct but Statement II is incorrect.

   

• Statement I is incorrect but Statement II is correct.

   

• Both Statement I and Statement II are correct.

   

• Both Statement I and Statement II are incorrect.

   

Q 9 :

Identify structure of 2,3-dibromo-1-phenylpentane.                               [2024]

Q 10 :

Number of $\mathrm{\sigma }$ and $\mathrm{\pi }$ bonds present in ethylene molecule is respectively:                  [2024]

• 4 and 1

   

• 5 and 1

   

• 5 and 2

   

• 3 and 1

   

Q 11 :

The correct nomenclature for the following compound is:                          [2024]

• 2-Carboxy-4-hydroxyhept-6-enal

   

• 2-formyl-4-hydroxyhept-6-enoic acid

   

• 2-Carboxy-4-hydroxyhept-7-enal

   

• 2-formyl-4-hydroxyhept-7-enoic acid

   

Q 12 :

Functional group present in sulphonic acids is:                           [2024]

• 

   

• $-{\mathrm{SO}}_4\mathrm{H}$

   

• $-{\mathrm{SO}}_2$

   

• $-{\mathrm{SO}}_3\mathrm{H}$

   

Q 13 :

In the given compound, the number of 2° carbon atom/s is ________.                 [2024]

• Four

   

• Three

   

• One

   

• Two

   

Q 14 :

IUPAC name of following hydrocarbon (X) is:                                 [2024]

• 3,4,7-Trimethyloctane

   

• 2-Ethyl-2,6-diethylheptane

   

• 2,5,6-Trimethyloctane

   

• 2-Ethyl-3,6-dimethylheptane

   

Q 15 :

Given below are two statements:                                  [2024]

In the light of the above statements, choose the most appropriate answer from the options given below: 

• Statement I is correct but Statement II is incorrect

   

• Both Statement I and Statement II are incorrect

   

• Statement I is incorrect but Statement II is correct

   

• Both Statement I and Statement II are correct

   

Q 16 :

Number of compounds among the following which contain sulphur as heteroatom is ______.                    [2024]
Furan, Thiophene, Pyridine, Pyrrole, Cysteine, Tyrosine

Q 17 :

The total number of ‘Sigma’ and ‘Pi’ bonds in 2-formylhex-4-enoic acid is ______.                [2024]

Q 18 :

The total number of ‘sigma’ and ‘Pi’ bonds in 2-oxohex-4-ynoic acid is ______.             [2024]

Q 19 :

The IUPAC name of the following compound is:                       [2025]

• 6-Methoxycarbonyl-2,5-dimethylhexanoic acid.

   

• 2-Carboxy-5-methoxycarbonylhexane.

   

• Methyl-6-carboxy-2,5-dimethylhexanoate.

   

• Methyl-5-carboxy-2-methylhexanoate.

   

Q 20 :

The alkane from below having two secondary hydrogens is:                  [2025]

• 2,2,4,5-Tetramethylheptane

   

• 2,2,3,3-Tetramethylpentane

   

• 4-Ethyl-3,4-dimethyloctane

   

• 2,2,4,4-Tetramethylhexane

   

Q 21 :

In the given structure, number of $sp$ and $sp²$ hybridized carbon atoms present respectively are:              [2025]

• 4 and 5

   

• 4 and 6

   

• 3 and 5

   

• 3 and 6

   

Q 22 :

Match List I with List II.                             [2025]

Choose the correct answer from the options given below:

• (A-III), (B-II), (C-IV), (D-I)

   

• (A-III), (B-II), (C-I), (D-IV)

   

• (A-II), (B-III), (C-IV), (D-I)

   

• (A-II), (B-III), (C-I), (D-IV)

   

Q 23 :

Total number of sigma $\left(\mathrm{\sigma }\right)$ ____ and pi$\left(\mathrm{\pi }\right)$ ____ bonds respectively present in hex-1-en-4-yne are:                [2025]

• 3 and 13

   

• 14 and 3

   

• 11 and 3

   

• 13 and 3

   

Q 24 :

In 3,3-dimethylhex-1-ene-4-yne, there are ____ $s{p}^3$, ____ $s{p}^2$ and ____ $sp$ hybridised carbon atoms respectively:                 [2025]

• 4, 2, 2

   

• 3, 3, 2

   

• 2, 4, 2

   

• 2, 2, 4

   

Q 25 :

What is the correct IUPAC name of                          [2025]

• 3-Bromo-2-hydroxy-5-nitrobenzoic acid

   

• 3-Bromo-4-hydroxy-1-nitrobenzoic acid

   

• 2-Hydroxy-3-bromo-5-nitrobenzoic acid

   

• 5-Nitro-3-bromo-2-hydroxybenzoic acid

   

Q 26 :

The IUPAC name of the following compound is:                 [2025]

• 4-Hydroxyhept-1-en-6-yne

   

• 4-Hydroxyhept-6-en-1-yne

   

• Hept-6-en-1-yn-4-ol

   

• Hept-1-en-6-yn-4-ol

   

Q 27 :

Which of the following is the correct IUPAC name of given organic compound (X)?                  [2025]

• 2-Bromo-2-methylbut-2-ene

   

• 3-Bromo-3-methylprop-2-ene

   

• 1-Bromo-2-methylbut-2-ene

   

• 4-Bromo-3-methylbut-2-ene

   

Q 28 :

What is the correct IUPAC name of                   [2025]

• 4-Ethyl-1-hydroxycyclopent-2-ene

   

• 1-Ethyl-3-hydroxycyclopent-2-ene

   

• 1-Ethylcyclopent-2-en-3-ol

   

• 4-Ethylcyclopent-2-en-1-ol

   

Q 29 :

The sum of sigma $\left(\mathrm{\sigma }\right)$ and pi$\left(\mathrm{\pi }\right)$ bonds in Hex-1,3-dien-5-yne is ______.                    [2025]

Q 30 :

The correct IUPAC nomenclature for the following compound is:             [2023]

• 5-Methyl-2-oxohexan-6-oic acid

   

• 5-Formyl-2-methylhexanoic acid

   

• 2-Methyl-5-oxohexanoic acid

   

• 2-Formyl-5-methylhexan-6-oic acid