Target DPP Test

1.

The IUPAC name of a given compound is:

1. 2-Ethyl-3-methyl-hex-1-en-4-yne
2. 5-Ethyl-4-methyl-hexa-2-yn-5-ene
3. 3-Methylene-4-methylhepta-5-yne
4. 4-Methyl-5-methylene hepta-2-yne

2.

The IUPAC name of the compound

1. 3,3-diethyl-4-methyl-5 (methylethyl)octane
2. 3,3-diethyl-5-isopropyl-4-methyloctane
3. 4-isopropyl-5-methyl-6,6-diethyloctane
4. 6,6-diethyl-4-isopropyl-5-methyloctane

3.

Isobutyl chloride is-
1. CH₃CH₂CH₂CH₂Cl
2. (CH₃)₂CHCH₂Cl
3. CH₃CH₂CHClCH₃
4. (CH₃)₃C-Cl

4.

A student assigned the name 1,4-butadiene to the given compound.
$\stackrel{1}{\mathrm{C}} \mathrm{H}_2=\stackrel{2}{\mathrm{C}} \mathrm{H}-\stackrel{3}{\mathrm{C}} \mathrm{H}=\mathrm{CH}_2 .$
Which statement is correct?
1. The name is correct.
2. He committed an error in the selection of the carbon chain.
3. He committed an error in the position of the double bond.
4. Unpredictable

5.

IUPAC name of the compound, is-
1. But-2-en-1-ol
2. 1-Hydroxy but-1-ene
3. 4-Hydroxy butene-3
4. But-1-en-1-ol

6.

The correct IUPAC name of (C₂H₅)₄C is-
1. Tetraethyl methane
2. 2-Ethylpentane
3. 3,3-Diethylpentane
4. None of the above

7.

The general molecular formula, which represents the homologous series of alkanols is
1. C_nH_2nO₂
2. C_nH_2nO
3. C_nH_2n+1O
4. C_nH_2n+2O

8.

The IUPAC name of
1. 2,3-diethyl butane
2. 3,4-dimethyl hexane
3. 3-methyl pentane
4. 2-ethyl 3-methyl pentane

9.

The IUPAC name of is:

(1) propene-1, 3-dial
(2) Propene-1, 3-dicarbaldehyde
(3) Pent-3-ene-1, 5-dial
(4) Pent-2-ene-1, 5-dial

10.

The IUPAC name of CH3 -CHOH- CH₂- CO-CH₃ is:
(1) 2-Hydroxypentan-4-one
(2) 4-Hydroxypentan-2-one
(3) 4-oxopentan-2-ol
(4) 2-oxopentan-4-ol

11.

Which nomenclature is not according to IUPAC system?

12.

The correct IUPAC name of the compound
is
1. 3-ethyl-4-ethenylheptane
2. 3-ethyl-4-propylhex-5-ene
3. 3-(1-ethyl propyl) hex-1-ene
4. 4-ethyl-3-propylhex-1-ene

13.

The isobutyl group among the following is:

1.
2.	CH₃–CH₂–CH₂–CH₂–
3.
4.

14.

The correct order regarding the electronegativity of hybrid orbitals of carbon is:
1. $s p > s p^{2} < s p^{3}$
2. $s p > s p^{2} > s p^{3}$
3. $s p < s p^{2} > s p^{3}$
4. $s p < s p^{2} < s p^{3}$

15.

In which of the following sets, from left to right, is the hybridization sequence sp²-sp²-sp-sp applicable?

1.	$\mathrm{CH}_2=\mathrm{CH}-\mathrm{C} \equiv \mathrm{CH}$
2.	$\mathrm{CH} \equiv \mathrm{C}-\mathrm{C} \equiv \mathrm{N}$
3.	$\mathrm{CH}_2=\mathrm{C}=\mathrm{C}=\mathrm{CH}_2$
4.

16.

The IUPAC name of following compound is:

1. 3-Ethyl-4-methylhept-5-en-2-one
2. 4-Ethyl-4-methylhept-5-en-2-one
3. 4-Ethyl-3-methylhept-5-en-2-one
4. 3-Ethyl-3-methylhept-5-en-2-one

17.

IUPAC name of the given compound is :

1. 3-Phenylpropane
2. Phenyl-1-butane
3. 2-Benzylethane
4. Propyl benzene

18.

The correct IUPAC name of the following structure is

1.	2,4,7-Trimethyloctane	2.	2,5,7-Trimethyloctane
3.	2,3,7-Trimethyloctane	4.	All of the above

19.

The IUPAC name of the following compound is -

1. 4,4-Dimethyl-3-hydroxybutanoic acid
2. 2-Methyl-3-hydroxypentan-5-oic acid
3. 4-Methyl-3-hydroxypentanoic acid
4. 3-Hydroxy-4-methylpentanoic acid

20.

What is the correct structure of 2,6-Dimethyl-dec-4-ene?

1.		2.
3.		4.

21.

Match the structures given in column I with the corresponding IUPAC names given in column II and choose the correct option.

Column I	Column II
A.	i. Pent-4-en-2-ol
B.	ii. Cyclohex-2-en-1-ol
C.	iii. 6-Hydroxy-heptanal
D.	iv. 2-Chlorohexane
E.	v. 3- Nitrocyclohexene

1. A = iii; B = iv; C = v; D = ii; E = i
2. A = iii; B = iv; C = ii; D = v; E = i
3. A = iv; B = i; C = v; D = iii; E = ii
4. A = iv; B = i; C = ii; D = v; E = iii

22.

The IUPAC name of the following compound is:

1. 3-Amino-4-hydroxymethyl-5-nitrobenzaldehyde
2. 2-Nitro-4-hydroxymethyl-5-amino benzaldehyde
3. 4-Amino-2-formyl-5-hydroxymethylnitrobenzene
4. 5-Amino-4-hydroxymethyl-2-nitrobenzaldehyde

23.

The IUPAC name of the given compound is:

1. 3-(Bromomethyl)-2-methyl butanoyl chloride
2. 3-(Bromomethyl)-2-methyl propionyl chloride
3. 2-(Bromomethyl)-3-methyl butanoyl chloride
4. None of the above

24. What is the IUPAC name of the following compound?
$ ~~~~~~~~O\\ ~~~~~~~~~||\\ H - C-CH_2-CH_2-OCH_3$
1. 2- Formyl Methyl ethane
2. 1-Methoxypropanal
3. 2-Methoxypropanal
4. 3-Methoxypropanal

25. Number of sigma $(\sigma) $ and pi $(\pi) $ bonds present in the given molecule are:

1.	$29 ~\sigma , 8 \pi$	2.	$28 ~\sigma , 8 \pi$
3.	$29 ~\sigma , 7 \pi$	4.	$28 ~\sigma , 7 \pi$

26.

The products obtained on heterolytic cleavage of the C–C bond in propane (CH₃CH₂CH₃) are:

1.		2.
3.		4.

27. C-H bond that has the highest 's' character, among the following, is:
1. Acetylene
2. Ethylene
3. Methane
4. $\dot{\text C} \text{H}_3$ radical

28. IUPAC name of the below given compound is:

1. 3, 4-dimethyl-3-n-propylnonane
2. 5, 7-dimethyl-7-n-propylnonane
3. 4-ethyl-4,5-dimethyldecane
4. 6,7-dimethyl-7-ethyldecane

29. What is the correct IUPAC name of the given compound?

1. 2-Hydroxycyclopentanal
2. 2-Formyl-1-hydroxycyclopentane
3. 2-Hydroxycyclopentanecarbaldehyde
4. Cyclopentane-2-ol-1-al

30. The number of heteroatoms present in the following compound is/are :

1. 2
2. 3
3. 1
4. 4

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1.	\(\mathrm{CH}_2=\mathrm{CH}-\mathrm{C} \equiv \mathrm{CH}\)
2.	\(\mathrm{CH} \equiv \mathrm{C}-\mathrm{C} \equiv \mathrm{N}\)
3.	\(\mathrm{CH}_2=\mathrm{C}=\mathrm{C}=\mathrm{CH}_2\)
4.

1.	\(29 ~\sigma , 8 \pi\)	2.	\(28 ~\sigma , 8 \pi\)
3.	\(29 ~\sigma , 7 \pi\)	4.	\(28 ~\sigma , 7 \pi\)

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