Organic Chemistry - Organic Chemistry Basics

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Q1. Which of the following compounds is an isomer of butane? (2021)

Solution:

2-methylpropane is an isomer of butane, having the same molecular formula but a different structure.

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Q2. What type of isomerism is shown by compounds with the same molecular formula but different structural formulas? (2023)

Solution:

Structural isomerism occurs when compounds have the same molecular formula but different structural arrangements.

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Q3. What is the IUPAC name for CH3CH2COOH? (2021)

Solution:

CH3CH2COOH is propanoic acid, which has a three-carbon chain with a carboxylic acid functional group.

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Q4. Which of the following functional groups is present in alcohols? (2019)

Solution:

Alcohols contain the hydroxyl functional group (-OH).

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Q5. Which of the following statements is true about alkenes? (2019)

Solution:

Alkenes are characterized by the presence of at least one double bond between carbon atoms.

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Q6. What type of bond is primarily found in alkenes? (2023)

Solution:

Alkenes are characterized by the presence of at least one double bond between carbon atoms.

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Q7. Which of the following is an example of a saturated hydrocarbon? (2023)

Solution:

Butane is a saturated hydrocarbon, meaning it contains only single bonds between carbon atoms.

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Q8. Which of the following compounds contains a carboxylic acid functional group? (2021)

Solution:

C2H4COOH (acetic acid) contains the carboxylic acid functional group (-COOH).

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Q9. What is the IUPAC name for CH3-CH2-CH2-CHO? (2020)

Solution:

The IUPAC name for CH3-CH2-CH2-CHO is Butanal, as it has a four-carbon chain with an aldehyde functional group.

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Q10. What is the IUPAC name for CH3-CH2-CH2-COOH? (2020)

Solution:

The IUPAC name for CH3-CH2-CH2-COOH is Butanoic acid, as it has four carbon atoms.