Alcohol's Quiz... (^_^) ^

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1. Give the systematic name for this compound:  CH₃CH₂CH₂CH₂CH₂ OH

Explanation

The compound CH₃CH₂CH₂CH₂CH₂OH is a five-carbon chain with an alcohol functional group attached to the first carbon. According to the IUPAC naming system, the parent chain is pentane, and since the alcohol group is attached to the first carbon, it is named as 1-pentanol.

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About This Quiz
Alcohols Quiz... (^_^) ^ - Quiz

Explore the fascinating world of organic chemistry through ALCOHOL'S QUIZ! Engage with questions on systematic and IUPAC naming of organic compounds, identifying hydrophilic portions, and predicting reaction products. Perfect for enhancing your understanding of organic molecule structures.

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2. State the hydrophilic portion in molecule:

Explanation

The hydrophilic portion in the molecule is COOH. This is because COOH is a carboxyl group, which is a polar functional group that can form hydrogen bonds with water molecules. Hydrophilic molecules have an affinity for water and can dissolve or mix well with water. In this molecule, COOH is the only group that contains oxygen and hydrogen atoms, allowing it to interact with water molecules and make the molecule hydrophilic.

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3. What is the name for this structure:

Explanation

The correct answer is trans-1,2-cyclohexanediol. The name "trans" indicates that the two hydroxyl groups are on opposite sides of the cyclohexane ring, while "1,2" indicates that the hydroxyl groups are attached to carbon atoms 1 and 2 of the cyclohexane ring. "Cyclohexanediol" indicates that there are two hydroxyl groups attached to the cyclohexane ring.

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4. Give the name for this structure: 

Explanation

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5. What is the general formula of alcohol?

Explanation

The general formula of alcohol is CnH₂n₊₁OH. This formula represents the structure of alcohol molecules, where n represents the number of carbon atoms in the molecule. The formula indicates that alcohols consist of a hydroxyl group (-OH) attached to a carbon chain. The number of hydrogen atoms in the molecule is twice the number of carbon atoms plus one. This formula applies to all types of alcohols, including primary, secondary, and tertiary alcohols.

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6. What is the possible structure for C?

Explanation

The possible structure for C is CH₃CH₂COOH because it is the only option that contains the carboxylic acid functional group (-COOH). The other options do not have this functional group.

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7. What is the possible product from the dehydration of cyclopentanol?

Explanation

The possible product from the dehydration of cyclopentanol is cyclopentene. Dehydration of an alcohol involves the removal of a water molecule, resulting in the formation of a double bond. In this case, the dehydration of cyclopentanol would result in the formation of cyclopentene, which is a cyclic hydrocarbon with a double bond.

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8. Give IUPAC name for this compound: 

Explanation

The correct answer is 5-methyl-4-propyl-3-heptanol. The IUPAC name for this compound is determined by arranging the substituents in alphabetical order and assigning the lowest possible numbers to the substituents. In this compound, there is a methyl group attached to the fifth carbon, a propyl group attached to the fourth carbon, and a heptanol chain attached to the third carbon. Therefore, the correct IUPAC name is 5-methyl-4-propyl-3-heptanol.

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9. What is the type of the reaction for this reaction : 

Explanation

The type of reaction for this reaction is oxidation.

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10. If the iodoform test give a positive result, what is the observation?

Explanation

When the iodoform test gives a positive result, it means that a light yellow precipitate is formed. This indicates the presence of a compound that contains a methyl ketone or an alcohol with a methyl group attached to it. The formation of the precipitate occurs due to the reaction between iodine and the compound, resulting in the formation of iodoform. Therefore, the observation of a light yellow precipitate confirms a positive iodoform test.

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11. Give the product for this reaction: 

Explanation

The given reaction involves the substitution of a chlorine atom (Cl) with a hydroxyl group (OH) in the compound CH₃CH₂CH₂CH₂-Cl. This substitution reaction is known as nucleophilic substitution, where the hydroxyl group acts as the nucleophile. The resulting product is CH₃CH₂CH₂CH₂-OH, which is an alcohol compound.

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12. Arrange the compound in increasing acidity.

Explanation

Carboxylic acids are more acidic than phenols and alcohols because the carboxyl group (-COOH) can easily donate a proton (H+) due to the presence of the highly electronegative oxygen atom. Phenols are less acidic than carboxylic acids because the hydroxyl group (-OH) is not as easily ionizable. Alcohols are the least acidic among the three compounds as the alkyl group attached to the hydroxyl group (-OH) hinders the ionization of the hydroxyl group. Thus, the correct order of increasing acidity is carboxylic acid>phenol>alcohol.

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13.
What can be produce in this reaction?

Explanation

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14. An organic compound X has the following properties:      ·   Liberates HCl when added to PCl₅      ·   Rotates plane-polarised light Which of the following is X?

Explanation

The compound X can be identified as an optically active compound since it rotates plane-polarized light. Additionally, it liberates HCl when added to PCl₅, suggesting that it contains a functional group capable of reacting with PCl₅ to form HCl. Therefore, the correct answer is a compound that is both optically active and can react with PCl₅ to liberate HCl.

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15. Several reaction involving phenol are shown below. Which reaction is possible?

Explanation

The reaction C₆H₅OH + K → C₆H₅OK +⅟₂H₂ is possible because it involves the reaction between phenol (C₆H₅OH) and potassium (K) to form phenolate ion (C₆H₅OK) and hydrogen gas (⅟₂H₂). This reaction is a type of metal displacement reaction where potassium replaces the hydrogen in phenol, resulting in the formation of phenolate ion and hydrogen gas as a byproduct.

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Give the systematic name for this compound:...
State the hydrophilic portion in molecule:
What is the name for this structure:
Give the name for this structure: 
What is the general formula of alcohol?
What is the possible structure for C?
What is the possible product from the dehydration of cyclopentanol?
Give IUPAC name for this compound: 
What is the type of the reaction for this reaction : 
If the iodoform test give a positive result, what is the observation?
Give the product for this reaction: 
Arrange the compound in increasing acidity.
What can be produce in this reaction?
An organic compound X has the following properties:...
Several reaction involving phenol are shown below. Which reaction is...
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