Chemistry Objective Questions and Answers: Organic Chemistry Some Basic Principles and Techniques
Explore reliable objective questions for Organic Chemistry Some Basic Principles and Techniques tailored for NEET learners. Utilizing these Chemistry multiple-choice formats ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.
Download Organic Chemistry Some Basic Principles and Techniques MCQs with Answers
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Question: Names of some compounds are given. Which one is not correct in IUPAC system ?
- a)
- b)
- c)
- d)
Answer:
Question: The best method for the separation of naphthalene and benzoic acid from their mixture is
- a) Chromatography
- b) Crystallisation
- c) Distillation
- d) Sublimation
Answer: Sublimation
Question: The correct order of increasing bond length of C – H, C – O, C – C and C = C is
- a)
- b)
- c)
- d)
Answer:
Question: Homolytic fission of the following alkanes forms free radicals CH3– CH3, CH3– CH2– CH3, (CH3)2CH – CH3,CH3– CH2– CH (CH3)2. Increasing order of stability of the radicals is
- a)
- b)
- c)
- d)
Answer:
Question: Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?
- a) Fe3[Fe(CN)6]3
- b) Fe3[Fe(CN)6]2
- c) Fe4[Fe(CN)6]3
- d) Fe4[Fe(CN)6]2
Answer: Fe4[Fe(CN)6]3
Question: Which one is a nucleophilic substitution reaction among the following?
- a)
- b)
- c)
- d)
Answer:
Question: For the given alkane
The IUPAC name is
- a) 1, 1 dimethyl-5-ethyloctane
- b) 6-ethyl-2-methylnonane
- c) 4-ethyl-8-methylnonane
- d) 2-methyl, -6-propyloctane
Answer: 6-ethyl-2-methylnonane
Question: Most stable carbocation is
- a)
- b)
- c)
- d)
Answer:
Question: Lowest pKa is associated with
- a)
- b)
- c)
- d)
Answer:
Question: Which of the following chemical system is non-aromatic?
- a)
- b)
- c)
- d)
Answer:
Question: Arrange the following in increasing order of stability.
- a) e < d < c < b < a
- b) e < d < c < a < b
- c) d < e < c < a < b
- d) a < e < d < c < b
Answer: e < d < c < a < b
Question: An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H,9.67%. The empirical formula of the compound would be
- a) CH4O
- b) CH3O
- c) CH2O
- d) CHO
Answer: CH3O
Question: The most suitable method of the separation of a 1 : 1 mixture of ortho-and para-nitrophenols is
- a) Crystallization
- b) Chromatography
- c) Steam distillation
- d) Sublimation
Answer: Steam distillation
Question:
The IUPAC name for 
- a) 3-amino hept-5-enoic acid
- b) β-amino δ–heptenoic acidx
- c) 5-amino 2-heptenoic acid
- d) 5-amino hex-2-ene-carboxylic acid
Answer: 3-amino hept-5-enoic acid
Question: The number of structural isomers in C4H10O will be
- a) 7
- b) 8
- c) 5
- d) 6
Answer: 7
Question: The IUPAC name of (CH3)2CH–CH2–CH2Br is
- a) 1-bromo-3-methyl butane
- b) 2-methyl-3-bromo propane
- c) 1-bromo pentane
- d) 2-methyl and 4-bromo butane
Answer: 1-bromo-3-methyl butane
Question: Among the following compounds (I-III) the correct order of rate of electrophillic substitution is
- a) I > II > III
- b) I = II > III
- c) II > III > I
- d) III < I < II
Answer: I > II > III
Question: Tautomerism is exhibited by
- a) R3CNO2
- b) RCH2NO2
- c) (CH3)3CNO
- d) (CH3)2NH
Answer: RCH2NO2
Question: Which one of the following compounds will be most easily attacked by an electrophile?
- a)
- b)
- c)
- d)
Answer:
More Questions.......................................
Question: Which one of the following orders is correct regarding the –I effect of the substituents?
- a)
- b)
- c)
- d)
Answer:
Question: Increasing order of electrophilic substitution for following compounds
- a) IV < I < II < III
- b) III < II < I < IV
- c) I < IV < III < II
- d) II < III < I < IV
Answer: IV < I < II < III
Question: The incorrect IUPAC name is
- a)
- b)
- c)
- d)
Answer:
Question: IUPAC name of the following is
- a) 1, 5-hexenyne
- b) 1-hexene-5-yne
- c) 1-hexyne-5-ene
- d) 1, 5-hexynene
Answer: 1-hexene-5-yne
Question:
are
- a) Resonating structures
- b) Tautomers
- c) Geometrical isomers
- d) Optical isomers
Answer: Resonating structures
Question: Name of the compound given below is
- a) 4-ethyl-3-methyloctane
- b) 3-methyl-4-ethyloctane
- c) 2, 3-diethylheptane
- d) 5-ethyl-6-methyloctane
Answer: 4-ethyl-3-methyloctane
Question: The molecular formula of diphenyl methane, 
is C13H12 . How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom?
- a) 6
- b) 4
- c) 8
- d) 7
Answer: 4
Question: The number of structural isomers in C4H10O will be
- a) 7
- b) 8
- c) 5
- d) 6
Answer: 7
Question: The best method for the separation of naphthalene and benzoic acid from their mixture is
- a) Chromatography
- b) Crystallisation
- c) Distillation
- d) Sublimation
Answer: Sublimation
Question: What is the hybridisation state of benzyl carbonium ion
- a) sp3
- b) sp2
- c) spd2
- d) sp2d
Answer: sp2
Question: Which of the following compounds will exhibit cis-trans (geometrical) isomerism?
- a) Butanol
- b) 2-Butyne
- c) 2-Butenol
- d) 2-Butene
Answer: 2-Butene
Multiple Choice Questions (MCQs) for NEET Chemistry Organic Chemistry Some Basic Principles and Techniques
NEET Chemistry Organic Chemistry Some Basic Principles and Techniques Objective Test Questions
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FAQs
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By solving our NEET Chemistry Organic Chemistry Some Basic Principles and Techniques MCQs Set 03, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Chemistry.
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