Organic Chemistry 2 Online. We covered all the Organic Chemistry 2 Online MCQ in this post for free so that you can practice well for the exam.
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MCQ on Organic Chemistry for Students
Why does carbon form compounds mainly by covalent bonding?
(a) There are four electrons in the outermost shell of carbon.
(b) It requires a large amount of energy to form C4+ or C4sup>4-.
(c) It shares its valence electrons to complete its octet.
(d) All of the above.
Option d – All of the above
Addition reactions are undergone by
(a) saturated hydrocarbons (alkanes)
(b) only alkenes
(c) only alkynes
(d) both alkenes and alkynes
Option d – both alkenes and alkynes
Identify ‘A’ in the following reaction: CH3COOH + Na₂CO3 → A+ CO₂ + H₂O
(a) CH3COONa
(b) CH₂(Na)COOH
(c) NaOH
(d) NaHCO3
Option a – CH3COONa
Which of the following belongs to the homologous series of alkynes? C6H6, C₂H6, C₂H4, C3H4.
(a) C6H6
(b) C₂H4
(c) C₂H6
(d) C3H4
Option d – C3H4
A hydrocarbon has four carbon atoms. Give its molecular formula if it is an alkene.
(a) C₂H10
(b) C4H8
(c) C₂H6
(d) C4H4
Option b – C4H8
Give the IUPAC name of CH3COOC₂H5.
(a) Ethyl ethanoic acid
(b) Butanoate
(c) Ethyl ethanoate
(d) Ethyl methyl carboxylic acid
Option c – Ethyl ethanoate
The first member of the alkyne homologous series is
(a) propyne
(b) ethyne
(c) methane
(d) ethene
Option b – ethyne
In a diamond, each carbon atom is bonded to four other carbon atoms to form
(a) a hexagonal array
(b) a rigid three-dimensional structure
(c) a structure in the shape of a football
(d) a structure of a ring
Option b – a rigid three-dimensional structure
A soap molecule has an
(a) hydrophobic head and hydrophobic tail
(b) hydrophobic head and a hydrophilic tail
(c) hydrophilic head and a hydrophilic tail
(d) hydrophilic head and hydrophobic tail
Option d – hydrophilic head and hydrophobic tail
When ethanoic acid is treated with NaHCO^ the gas evolved is
(a) H₂
(b) CO₂
(c) CH4
(d) CO
Option b – CO₂
Ethanol on complete oxidation gives
(b) CO₂ and water
(c) ethanal
(d) acetone/ethanone
Option b – CO₂ and water
Which of the following will give a pleasant smell of ester when heated with ethanol and a small quantity of sulphuric acid?
(a) CH3COOH
(b) CH3CH₂OH
(c) CH₂OH
(d) CH3CHO
Option a – CH3COOH
Name the functional group present in CH3COCH3.
(a) Alcohol
(b) Carboxylic acid
(c) Ketone
(d) Aldehyde
Option c – Ketone
Which of the following statements is correct for carbon compounds? (1) Most carbon compounds are good conductors of electricity. (ii) Most carbon compounds are poor conductors of electricity. (iii) Force of attraction between molecules of carbon compounds is not very strong. (iv) Force of attraction between molecules of carbon compounds is very strong.
(a) (ii) and (iv)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (i) and (iii)
Option b – (ii) and (iii)
C3H8 belongs to the homologous series of
(a) Alkynes
(b) Alkenes
(c) Alkanes
(d) Cycloalkanes
Option c – Alkanes
The number of isomers of pentane is
(a) 2
(b) 3
(c) 4
(d) 5
Option b – 3
Which of the following will undergo additional reactions?
(a) CH4
(b) C3H8
(C) C₂H6
(d) C₂H4
Option d – C₂H4
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