Alkanes MCQ for NEET. We covered all the Alkanes MCQ for NEET in this post for free so that you can practice well for the exam.
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MCQ on Alkanes for NEET Students
In the presence of concentrated sulphuric acid, acetic acid reacts with ethyl alcohol to produce :
(a) aldehyde
(b) alcohol
(c) ester
(d) carboxylic acid
Option c – ester
Which of the following are isomers?
(a) Butane and Isobutene
(b) Ethane and Ethene
(c) Propane and Propyne
(d) Butane and Isobutane
Option d – Butane and Isobutane
Acetic acid may be prepared by the
(a) reduction of acetone
(b) oxidation of ethanol
(c) destructive distillation of soft coal
(d) polymerization of ethylene
Option b – oxidation of ethanol
Chlorine reacts with saturated hydrocarbons at room temperature in the
(a) absence of sunlight
(b) presence of sunlight
(c) presence of water
(d) presence of hydrochloric acid
Option b – presence of sunlight
Which of the following options about graphite and diamond is true?
(a) They have the same crystal lattice structure
(b) They have the same degree of hardness
(c) They have the same electrical conductivity
(d) They can undergo the same chemical reactions
Option d – They can undergo the same chemical reactions
The difference in formula and molecular masses for CH3OH and C₂H5OH is
(a) CH3 and 16 units.
(b) CH₂ and 14 units
(c) CH4 and 18 units
(d) CH and 16 units
Option b – CH₂ and 14 units
Study the list of compounds given. C₂H₂ C3H4 C₂H6 C5H8 C6H10 What do all the members of the given compounds have in common?
(a) The empirical formula
(b) The general formula
(c) The molecular formula
(d) The structure
Option b – The general formula
The reaction of an alcohol with a carboxylic acid is called :
(a) combustion
(b) esterification
(c) saponification
(d) None of these
Option b – esterification
The flavor of apple is mainly due to which one of the following?
(a) Formalin
(b) Benzene
(c) Ethanol
(d) Benzaldehyde
Option c – Ethanol
Does nail varnish remover generally contain which one of the following?
(a) Vinegar
(b) Benzene
(c) Methyl alcohol
(d) Acetone
Option d – Acetone
Which one of the following carbon compounds will not give a sooty flame?
(a) Benzene
(b) Hexane
(c) Naphthalene
(d) Anthracene
Option b – Hexane
The enzyme involved in the oxidation of ethanol to form vinegar is
(a) zymase
(b) oxidase
(c) acetobacter
(d) invertase
Option c – acetobacter
Glacial acetic acid is
(a) 100% acetic acid-free of water
(b) solidified acetic acid
(c) gaseous acetic acid
(d) frozen acetic acid
Option a – 100% acetic acid-free of water
Which of the following statements is not correct?
(a) Graphite is much less dense than diamond
(b) Graphite is black and soft
(c) Graphite has a low melting point
(d) Graphite feels smooth and slippery
Option a – Graphite is much less dense than diamond
The heteroatoms present in CH3-CH₂-0-CH₂-CH₂Cl are A. oxygen B. carbon C. hydrogen D. chlorine
(a) A and B
(b) B and C
(c) C and D
(d) A and D
Option d – A and D
The number of 4° carbon atoms in 2,2,4,4-tetramethyl pentane is
(a) 1
(b) 2
(c) 3
(d) 4
Option b – 2
When vanaspati oil reacts with hydrogen then it converts vanaspati ghee. In this process catalyst used is :
(a) Fe
(b) Mo
(c) V
(d) Ni
Option d – Ni
Which of the following gases is called ‘marsh gas’
(a) H₂
(b) CH4
(c) C₂H4
(d) C₂H₂
Option b – CH4
Which of the following is a part of the homologous series?
(a) Haloalkanes and alcohols
(b) Aldehydes and ketones
(c) Carboxylic acids
(d) All of the above
Option d – All of the above
What does isomerism explain?
(a) A difference in molecular formulae
(b) A difference in molecular weights
(c) A difference in chemical properties and structural formulae
(d) A difference in molecular composition
Option c – A difference in chemical properties and structural formulae
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