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Grade 11 Exam  >  Grade 11 Tests  >  Chemistry for Grade 11 (IGCSE)  >  Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Grade 11 MCQ

Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Grade 11 MCQ


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10 Questions MCQ Test Chemistry for Grade 11 (IGCSE) - Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers

Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers for Grade 11 2024 is part of Chemistry for Grade 11 (IGCSE) preparation. The Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers questions and answers have been prepared according to the Grade 11 exam syllabus.The Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers MCQs are made for Grade 11 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers below.
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Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 1
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What is the typical outcome when carboxylic acids react with metals?

Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 1
When carboxylic acids react with metals, they typically produce hydrogen gas and salts. This reaction is a characteristic behavior of carboxylic acids when they come into contact with metals. The hydrogen gas is a result of the acid displacing hydrogen from water molecules.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 2
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What is the suffix commonly found in salts derived from carboxylic acids?

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Salts derived from carboxylic acids typically end with the suffix "-anoate." This naming convention is based on the parent carboxylic acid's name. For example, ethanoic acid produces ethanoate salt, following the pattern of naming salts derived from carboxylic acids.
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Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 3
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When carboxylic acids react with carbonates, what are the typical products formed?

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When carboxylic acids react with carbonates, the typical products formed include salt, water, and carbon dioxide. This reaction is important in understanding the chemical properties of carboxylic acids and their interactions with different compounds.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 4
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How is ethanoic acid typically produced through fermentation?
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Ethanoic acid is commonly produced through fermentation by the microbial oxidation of ethanol, a process that occurs naturally when ethanol is exposed to atmospheric oxygen with the help of bacteria like acetobacter. This process is how vinegar, which contains ethanoic acid, is created. It involves the oxidation of ethanol to form ethanoic acid and water. This method is often seen in the production of vinegar and is a natural process that has been utilized for centuries in food preservation and flavoring.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 5
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In the process of esterification, what are the key components required for the reaction to occur?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 5
In esterification, the reaction involves alcohols and carboxylic acids. This process typically requires the presence of an acid catalyst, such as concentrated sulfuric acid, to facilitate the formation of the ester. Esterification is a crucial chemical reaction in the production of esters, which are widely used in food flavorings and perfumes due to their sweet-smelling characteristics.
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What is the general chemical formula for an ester?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 6
The general chemical formula for an ester is R-COO-R, where R represents an alkyl group or an aryl group. Esters are characterized by this functional group, which consists of a carbonyl group attached to an oxygen atom and another carbon group. This structure is essential for the distinctive properties of esters, such as their pleasant odors and flavors, making them valuable in various applications like food and fragrance industries.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 7
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Which of the following best describes the role of concentrated sulfuric acid in the esterification reaction?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 7
In the esterification process, concentrated sulfuric acid functions as a catalyst, not a reactant. The presence of sulfuric acid helps to lower the activation energy barrier for the reaction, thereby accelerating the formation of esters from alcohols and carboxylic acids. This catalytic role of sulfuric acid is crucial for promoting the esterification reaction efficiently and increasing the yield of the desired ester product.
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What type of bond connects each repeat unit to its adjacent units in a polymer chain?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 8
In polymers, each repeat unit is connected to its adjacent units in the polymer chain through covalent bonds. These bonds involve the sharing of electrons between atoms, creating a strong bond that holds the polymer chain together. Covalent bonds are essential for the structural integrity of the polymer and play a crucial role in determining the properties of the polymer material.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 9
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Which process is involved in the production of Poly(ethene)?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 9
Poly(ethene) is produced through addition polymerization, a process where numerous ethene monomers combine to form a lengthy polymer chain. Addition polymerization involves the successive addition of monomers without the formation of any byproducts. In the case of poly(ethene), the carbon-carbon double bond in ethene is broken, allowing multiple ethene monomers to link together and form the polymer chain.
Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 10
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What distinguishes copolymers from other polymers?
Detailed Solution for Test: Carboxylic Acids & Ethanoic Acids & Esterification Reactions & Polymers - Question 10
Copolymers differ from other polymers in that they incorporate two or more different types of monomers in their structure. This blending of different monomers allows copolymers to exhibit a combination of properties from each monomer type, leading to unique material characteristics. The specific types of monomers used in copolymers influence their properties, applications, and behavior.
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