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Retrosynthesis Organic Chemistry. We covered all the Retrosynthesis Organic Chemistry in this post for free so that you can practice well for the exam.
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MCQ on Retrosynthesis Organic Chemistry for Students
How does carbon achieve a stable configuration by bonding with other atoms?
(a) helium
(b) neon
(c) argon
(d) krypton
Option b – neon
When welding broken iron parts using gas welding, which gas mixture is commonly used?
(a) ethane and oxygen
(b) ethene and oxygen
(c) ethyne and oxygen
(d) ethene and air
Option c – ethyne and oxygen
Ethanoic acid reacts with sodium bicarbonate producing a gas. When tested with a burning splinter, which observation is correct?
(a) A and B
(b) B and C
(c) C only
(d) D only
Option c – C only
Converting oils to fats using hydrogen in the presence of palladium or nickel is an example of which reaction type?
(a) Addition reaction
(b) Substitution reaction
(c) Displacement reaction
(d) Oxidation reaction
Option a – Addition reaction
In a soap micelle, how are the ionic and hydrocarbon ends arranged?
(a) the ionic end is on the outside, and the carbon chain is inside
(b) the ionic end is on the inside, and the carbon chain is on the outside
(c) both ends are inside the cluster
(d) both ends are outside the cluster
Option a – the ionic end is on the outside, and the carbon chain is inside
How can vegetable oil, which is liquid at room temperature, be turned into solid ghee?
(a) dehydrogenation
(b) hydrogenation
(c) halogenation
(d) dehydration
Option b – hydrogenation
Identify the compound that does not fit in the given homologous series:
(a) CH₄
(b) C₂H₆
(c) C₃H₈
(d) C₄H₈
Option d – C₄H₈
What are the products formed when ethanol reacts with sodium?
(a) sodium ethanoate and hydrogen
(b) sodium ethanoate and oxygen
(c) sodium ethoxide and hydrogen
(d) sodium ethoxide and oxygen
Option c – sodium ethoxide and hydrogen
What is the final product of methane chlorination under sunlight?
(a) CH₃Cl
(b) CH₂Cl₂
(c) CHCl₃
(d) CCl₄
Option d – CCl₄
What type of bonds are present in benzene (C₆H₆)?
(a) six single and six double bonds
(b) twelve single and six double bonds
(c) twelve single and three double bonds
(d) six single bonds and three double bonds
Option c – twelve single and three double bonds
What by-product is generated during soap production?
(a) glycerol
(b) glycol
(c) isoprene
(d) acid
Option a – glycerol
Why is it not advisable to light a candle in a closed room full of people?
(a) carbon dioxide from the candle causes difficulty in breathing
(b) carbon particles from the flame are harmful to the lungs
(c) burning candles release toxic methane gas
(d) carbon monoxide is produced, which hinders oxygen transport in blood
Option d – carbon monoxide is produced, which hinders oxygen transport in blood
What is the IUPAC name of the compound: CH₃–C(CH₃)(OH)–CH₂–CH(CH₃)–CH₃?
(a) 2,4-dimethyl pentane-2-ol
(b) 2,4-dimethyl pentane-4-ol
(c) 2,2-dimethyl butane
(d) butanol-2-on
Option a – 2,4-dimethyl pentane-2-ol
Ram performed an experiment by warming ethanol and adding alkaline KMnO₄ dropwise. What observation did he not make?
(a) purple color of the solution fades upon heating
(b) smell of ethanol is noticeable
(c) the solution turns blue litmus red
(d) vinegar-like smell is released
Option d – vinegar-like smell is released
Identify the correct option based on these characteristics: A. Contains ethanol B. Significant source of government revenue
(a) Alcoholic beverages
(b) Soft drinks
(c) Carbonated beverages
(d) Rectified spirit
Option a – Alcoholic beverages
What type of force exists between adjacent layers in graphite?
(a) strong forces
(b) weak forces
(c) no forces
(d) a combination of strong and weak forces
Option b – weak forces
What is the difference in molecular mass between two successive members of a homologous series?
(a) 15
(b) 14
(c) 8
(d) 9
Option b – 14
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