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Test: Alcohols & Carboxylic Acids - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Alcohols & Carboxylic Acids

Test: Alcohols & Carboxylic Acids for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Alcohols & Carboxylic Acids questions and answers have been prepared according to the UPSC exam syllabus.The Test: Alcohols & Carboxylic Acids MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Alcohols & Carboxylic Acids below.
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Test: Alcohols & Carboxylic Acids - Question 1

Aldehydes give carboxylic acids on:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 1

When an aldehyde is oxidized the product that results is a Carboxylic acid. 

Test: Alcohols & Carboxylic Acids - Question 2

From where can we get ethanol?

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 2

Sugarcane contains (C12H22O11) which on fermentation gives ethanol by the microbial action of invertase and zymase : --

Test: Alcohols & Carboxylic Acids - Question 3

Which gas is released when ethyl alcohol reacts with sodium?

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 3

Hydrogen gas is released.

Test: Alcohols & Carboxylic Acids - Question 4

In conversion from ethanol to ethene, concentrated sulphuric acid is used as:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 4

Sulphuric acid is used as a dehydrating agent because sulphuric acid has a great affinity for water. It readily removes elements of water from other compounds i.e, it acts as a dehydrating agent, it being a hygroscopic substance absorbs water from other substances without dissolving in it, so it is considered a good drying agent.

Test: Alcohols & Carboxylic Acids - Question 5

IUPAC name of CH3COOH is:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 5

Acetic acid, systematically named ethanoic acid, is a colourless liquid organic compound with the chemical formula 
CH3COOH .

Test: Alcohols & Carboxylic Acids - Question 6

Carboxylic acids are:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 6

Carboxylic acid is a weak acid as it undergoes partial or incomplete dissociation in water.

Test: Alcohols & Carboxylic Acids - Question 7

In the reaction, identify the reactant X.
CH3COOH + X  CH3COOC2H5 + H2O
Ethanoic
acid

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 7

This is an esterification reaction in which a sweet smelling compound ester is formed.

Test: Alcohols & Carboxylic Acids - Question 8

The alkaline hydrolysis of oils and fats is called:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 8

The alkaline hydrolysis of oils and fats is called saponification. The estrr, on treating with a base such as NAOH  is converted back to alcohol and sodium salt of Carboxylic acid. The reaction is known as saponification.

Test: Alcohols & Carboxylic Acids - Question 9

The common name of ethanoic acid is:

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 9

The common name of ethanoic acid is acetic acid.

Test: Alcohols & Carboxylic Acids - Question 10

Which of the following will give a pleasant smell of ester when heated with ethyl alcohol and a small quantity of sulphuric acid?​

Detailed Solution for Test: Alcohols & Carboxylic Acids - Question 10

Ethanoic acid reacts with ethanol in the presence of concentrated sulphuric acid as a catalyst to produce the ester, ethyl ethanoate.

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