Organic chemistry objective questions – Basic Principles, Classification, Nomenclature, Purification and Characterisation of Organic Compounds

Organic Chemistry – Basic Principles, Classification, IUPAC Nomenclature, Purifications, TECHNIQUES and Characterisation of Organic Compounds

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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)

https://www.indiastudysolution.com

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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