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Test: Chemistry - 1 - UPSC MCQ


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10 Questions MCQ Test - Test: Chemistry - 1

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

What is the pH value of a neutral solution on the pH scale?

Detailed Solution for Test: Chemistry - 1 - Question 1
A neutral solution has a pH value of 7 on the pH scale. This means it is neither acidic nor basic. It is essential to remember that pH 7 represents neutrality.
Test: Chemistry - 1 - Question 2

Which of the following substances is produced during the electrolysis of aqueous sodium chloride (brine)?

Detailed Solution for Test: Chemistry - 1 - Question 2
Chlorine gas is produced during the electrolysis of aqueous sodium chloride (brine). This process is part of the chlor-alkali process, where chlorine gas is one of the products formed at the anode.
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Test: Chemistry - 1 - Question 3

What is the chemical name for baking soda?

Detailed Solution for Test: Chemistry - 1 - Question 3
The chemical name for baking soda is sodium hydrogencarbonate (NaHCO3). It is commonly used in baking and as an antacid.
Test: Chemistry - 1 - Question 4
What is the process of separating a solid substance into vapors on the application of heat?
Detailed Solution for Test: Chemistry - 1 - Question 4
Sublimation is the process by which a solid substance passes directly into its vapor phase upon the application of heat, without going through a liquid phase. Substances like iodine, naphthalene, and benzoic acid undergo sublimation.
Test: Chemistry - 1 - Question 5
Which scientist is credited with discovering the Tyndall effect?
Detailed Solution for Test: Chemistry - 1 - Question 5
The Tyndall effect, which is the scattering of light by colloidal particles, is named after the scientist John Tyndall, who discovered and documented this phenomenon.
Test: Chemistry - 1 - Question 6
Which property of non-metals makes them poor conductors of heat and electricity?
Detailed Solution for Test: Chemistry - 1 - Question 6
Non-metals are poor conductors of heat and electricity because they have low electrical conductivity. Their outermost electron shells are usually filled, making it difficult for them to conduct electricity.
Test: Chemistry - 1 - Question 7
What is the property that allows metals to be hammered into thin sheets?
Detailed Solution for Test: Chemistry - 1 - Question 7
Metals have the property of malleability, which means they can be hammered or pressed into thin sheets without breaking. This property makes them useful for various applications, including metalworking.
Test: Chemistry - 1 - Question 8
Which type of wave exhibits particle motion that is parallel to the direction of energy transport?
Detailed Solution for Test: Chemistry - 1 - Question 8
A longitudinal wave exhibits particle motion that is parallel to the direction of energy transport. Sound waves in air are classic examples of longitudinal waves, where air particles move back and forth in the same direction as the wave's movement.
Test: Chemistry - 1 - Question 9
What is the term for a substance composed of two or more elements chemically combined in a fixed proportion?
Detailed Solution for Test: Chemistry - 1 - Question 9
A compound is a substance composed of two or more elements chemically combined in a fixed proportion. Compounds have distinct chemical properties and can be represented by chemical formulas.
Test: Chemistry - 1 - Question 10
What type of mixture is air?
Detailed Solution for Test: Chemistry - 1 - Question 10
Air is considered a homogeneous mixture because its composition is uniform throughout. It is a mixture of gases, including nitrogen, oxygen, carbon dioxide, and others, which are uniformly distributed.
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