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Showing posts with label Organic Chemistry - Introduction and Basic Principles. Show all posts
Showing posts with label Organic Chemistry - Introduction and Basic Principles. Show all posts

Practice Questions Set 3: Organic Chemistry – principles, classification, nomenclature, purification and characterisation of organic compounds

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Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds
India Study Solution Test Series (Practice Questions)
NEET, JEE Mains, JEE Advanced, NTSE | Engineering, BDS, MBBS Admission Test
Hi Guys,
Welcome back to your own site India Study Solution

https://www.indiastudysolution.com/2020/07/practice-questions-organic-chemistry-principles-classification-s3.html
India Study Solution test series Set-3: Here you have 10 new practice questions (Q. No. 21 - 30) with their hints & solutions from our Chemistry Solutions on chapter “Organic Chemistry – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds”.
In each set you will find a combination of most important carefully selected basic with some advanced level questions, utmost required for doing online preparation of all MBBS Admission Tests, Engineering Entrance Exams such as NEET, JEE and also many other Admission Tests or competitive exams.
Friends, believe me ... if you are preparing for any medical (MBBS) or engineering (B.Tech) entrance exam and have still not attempted our previous questions / other sections then you are really missing something very important. So please find links for previous sets at the end or in the drop down menu above and go through them!    
Organic Chemistry  
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
India Study Solution Test Series – Set 3 (Q. No 21-30)
Question 21: Steam distillation is applied to those organic compounds which are steam volatile and:
a. soluble in water
b. insoluble in water
c. sparingly soluble in water
d. insoluble in all solvents

Question 22: For the given alkane
The IUPAC name is
a. 1, 1 dimethyl-5-ethyl octane
b. 6-ethyl-2-methyl nonane
c. 4-ethyl-8-methyl nonane
d. 2-methyl-6-propyl octane

Question 23: There are several criteria for purity of organic compounds. Out of these which one is considered best?
a. Melting point
b. Microscopic examination
c. Mixed melting point
d. Colour

Question 24: The order of decreasing reactivity towards an electrophilic reagent, for the following would be
(i) Benzene
(ii) Toluene
(iii) Chlorobenzene
(iv) Phenol
a. (ii) > (iv) > (i) > (iii)
b. (iv) > (iii) > (ii) > (i)
c. (iv) > (ii) > (i) > (iii)
d. (i) > (ii) > (iii) > (iv)

Question 25: A compound which does not give a positive test in Lassaigne’s test for nitrogen is:
a. Urea
b. Hydrazine
c. Phenyl hydrazine
d. Azobenzene

Question 26: Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
a. –SO3H
b. -COOH
c. –NO2
d. –C ≡ N



Question 27: Duma’s method involves the determination of nitrogen content in the organic compound in the form of:
a. NH3
b. N2
c. NaCN
d. (NH4)2 SO4

Question 28: Complete combustion of 15 g of any organic compound gave 44 g of CO2. What is the percentage of carbon in the organic compound?
a. 60
b. 80
c. 40
d. 50

Question 29: Which of the following statement is incorrect:
a. Tollen’s reagent can distinguish propene and propyne
b. Iodoform test can distinguish propanone and ethanal
c. Lucas reagent can distinguish 1-propanol and 2- propanol
d. NaHCO3 can distinguish phenol and benzoic acid.

Question 30: Schiff’s and Piria method is used for the estimation of:
a. nitrogen
b. sulphur
c. halogens
d. oxygen 

India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Organic Chemistry 
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
Hints and Solutions of Organic Chemistry Test Series (MCQ) – Set 3 (Q. No.21–30)
Answer 21: b. Answer 22: b. Answer 23: c. Answer 24: c.
Answer 25: b (Hint: For Lassaigne’s test C-N bond must be present).
Answer 26: c. Answer 27: b. Answer 28: b. Answer 29: b. Answer 30: c.

Organic Chemistry: Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds
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Organic chemistry objective questions – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds

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Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds
India Study Solution Test Series (Confidence Booster)
NEET, JEE, IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
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Welcome back to your own site India Study Solution
https://www.indiastudysolution.com/2020/05/organic-chemistry-objective-questions-s2.html
As you are aware that in each set of India Study Solution test series we bring for you 10 new most important questions with their hints & solutions. This post is from our Chemistry Solutions on chapter “Organic Chemistry – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds”.
In each set you will find a combination of typically important some basic with some advanced level questions very helpful for doing online preparation of all MBBS Admission Tests, Engineering Entrance Exams, NEET, JEE and NTSE etc.
 (Please scroll down to find NEET and JEE syllabus for this chapter).
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Organic Chemistry
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
India Study Solution Test Series – Set 2 (Q. No 11-20)


Question 11: The IUPAC name of the compound CH3CH=CHC≡CH is
a. Pent-4-yn-2-ene
b. Pent-3-en-1-yne
c. Pent-2-en-4-yne
d. Pent-1-yn-3-ene

Question 12: Which of the following sodium compound / compounds are formed when an organic compound containing both nitrogen and sulphur is fused with sodium?
a. Cyanide and sulphide
b. Thiocyanate
c. Sulphite and cyanide
d. Nitrate and sulphide

Question 13: The number of structural isomers in C4H10O will be
a. 7
b. 8
c. 5
d. 6

Question 14: How many structural isomers are possible for C2H4Br2
a. 1
b. 2
c. 3
d. 4

Question 15: 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

Question 16: In a resonance hybrid, the bond length:
a. is smaller than in canonical structure
b. is greater than in canonical structure
c. is the same as in canonical structure
d. none of the above

Question 17: The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II) and nitrobenzene (III) is
a. III > II > I
b. II > III > I
c. I < II > III
d. I > II > III

Question 18: Carbon and hydrogen are estimated in organic compounds by:
a. Kjeldahl’s method
b. Duma’s method
c. Liebig’s method
d. Carius method

Question 19: Which method is used to separate two and more organic solids with different solubilities in the same solvent?
a. Crystallisation
b. Fractional crystallisation
c. Sublimation
d. Chromatography

Question 20: Which of the following is correct?
a. Cycloheptane is an aromatic compound
b. Diastase is an enzyme
c. Acetophenone is an ether
d. All of these

Organic Compounds: Basic Principles, Classification & Nomenclature, Purification and Characterisation (Syllabus for NEET and JEE): Introduction to Organic Chemistry, Structural representation of organic compounds, Methods of purification qualitative and quantitative analysis of organic compounds, Classifications based on functional groups, Nomenclature (Trivial and IUPAC), Homologous series and Isomerism, Fundamental concepts in organic reaction mechanism, Tetravalency of carbon, Shapes of simple molecules, Electronic displacements in a covalent bond: Inductive effect, Electromeric effect (E-effect), Resonance and Hyperconjugation, Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions; electrophiles and nucleophiles, Types of organic reactions.
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Organic Chemistry 
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
Hints and Solutions of Organic Chemistry Test Series (MCQ) – Set 2 (Q. No.11–20)
Answer 11: b. Answer 12: b. Answer 13: a.
Answer 14: b (C2H4Br2 => D.U = 0)
Answer 15: c. Answer 16: a. Answer 17: d. Answer 18: c. Answer 19: b. (Fractional crystallisation). Answer 20: b.

Organic Chemistry: Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds
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Organic Chemistry – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds Test Series

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Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds
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NEET, JEE, IIT, AIIMS, NTSE | Engineering, BDS, MBBS Admission Test
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Starting from today we will be bringing you 20 sets of new test series of a new chapter from organic chemistry (Please scroll down to find NEET and JEE syllabus for this chapter).
As you are already aware each set of India Study Solution test series contain very carefully selected, 10 most important questions with their hints & solutions (given at the end).
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Organic Chemistry  
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
India Study Solution Test Series – Set 1 (Q. No 1-10)

Question 1: Suggest a method to purify benzene containing non-volatile impurities:
a. steam distillation
b. distillation under reduced pressure
c. simple distillation
d. sublimation

Question 2: The IUPAC name of the compound CH2 = CH – CH (CH3)2 is
a.1, 1-dimethylprop-2-ene
b. 3-Methylbut-1-ene
c. 2-Vinylpropane
d. 1-Isopropylethylene

Question 3: Resonance structures of a molecule do not have:
a. identical arrangements of atoms
b. nearly the same energy content
c. the same number of paired electrons
d. identical bonding

Question 4: Which of the following acids does not exhibit optical isomerism?
a. Lactic acid
b. Tartaric acid
c. Maleic acid
d. α-amino acids

Question 5: The correct IUPAC name of the given compound is:





a. 1-methyethylcyclohexane
b. 2-methylethylcyclohexane
c. 1-ethylmethylcyclohexane
d. 2-ethylmethylcyclohexane

Question 6: Petroleum refining involves:
a. vacuum distillation
b. fractional distillation
c. steam distillation
d. passing over activated charcoal

Question 7: In graphite, electrons are
a. localised on every third carbon
b. present in antibonding orbital
c. localised on each carbon
d. spread out between the structures

Question 8: Methanol and acetone can be separated by:
a. fractional distillation
b. distillation
c. steam distillation
d. vacuum distillation

Question 9: Of the following compounds, the oxime of which shows geometrical isomerism, is
a. Acetone
b. Diethylketone
c. Formaldehyde
d. Benzaldehyde

Question 10: Which of the following compounds shows evidence of the strongest hydrogen bonding?
a. . Propane - 1, 2, 3-triol
b. Propane - 1, 2- diol
c. Propan – 1 - ol
d. Propan – 2 - ol

Organic Compounds: Basic Principles, Classification & Nomenclature, Purification and Characterisation (Syllabus for NEET and JEE): Introduction to Organic Chemistry, Structural representation of organic compounds, Methods of purification qualitative and quantitative analysis of organic compounds, Classifications based on functional groups, Nomenclature (Trivial and IUPAC), Homologous series and Isomerism, Fundamental concepts in organic reaction mechanism, Tetravalency of carbon, Shapes of simple molecules, Electronic displacements in a covalent bond: Inductive effect, Electromeric effect (E-effect), Resonance and Hyperconjugation, Homolytic and heterolytic fission of a covalent bond: free radicals, carbocations, carbanions; electrophiles and nucleophiles, Types of organic reactions.
India Study Solution - Hints and Solutions Chemistry MCQ Test Series
Organic Chemistry  
(Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds)
Hints and Solutions of Organic Chemistry Test Series (MCQ) – Set 1 (Q. No.1–10)
Answer 1: c. Answer 2: b. Answer 3: d. Answer 4: c.
Answer 5: a. (Hint: The correct IUPAC name of compound is 1-methylethylcycloheaxane and it is derivative of cyclohexane because the no. of C-atoms in the ring is more than the side chain).
Answer 6: b. (Hint: Crude petroleum is subjected for fractional distillation to get different products).
Answer 7: d. Answer 8: a. Answer 9: d. Answer 10: a.

Organic Chemistry: Basic Principles, Classification, IUPAC Nomenclature, Isomerism, Purification and Characterisation of Organic Compounds
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