SSC CGL Exam  >  SSC CGL Tests  >  General Awareness for SSC CGL  >  Test: Substance and it's Nature - SSC CGL MCQ

Test: Substance and it's Nature - SSC CGL MCQ


Test Description

15 Questions MCQ Test General Awareness for SSC CGL - Test: Substance and it's Nature

Test: Substance and it's Nature for SSC CGL 2024 is part of General Awareness for SSC CGL preparation. The Test: Substance and it's Nature questions and answers have been prepared according to the SSC CGL exam syllabus.The Test: Substance and it's Nature MCQs are made for SSC CGL 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Substance and it's Nature below.
Solutions of Test: Substance and it's Nature questions in English are available as part of our General Awareness for SSC CGL for SSC CGL & Test: Substance and it's Nature solutions in Hindi for General Awareness for SSC CGL course. Download more important topics, notes, lectures and mock test series for SSC CGL Exam by signing up for free. Attempt Test: Substance and it's Nature | 15 questions in 10 minutes | Mock test for SSC CGL preparation | Free important questions MCQ to study General Awareness for SSC CGL for SSC CGL Exam | Download free PDF with solutions
Test: Substance and it's Nature - Question 1

How is the state of matter known as a plasma characterized?

Detailed Solution for Test: Substance and it's Nature - Question 1

Plasma is a high-energy state of matter where atoms are ionized, meaning electrons are separated from nuclei. This state is commonly found in stars like the sun and certain laboratory conditions. An interesting fact about plasma is that it is often referred to as the fourth state of matter, distinct from solids, liquids, and gases due to its unique properties.

Test: Substance and it's Nature - Question 2

What distinguishes a Bose-Einstein Condensate (BEC) as a state of matter?

Detailed Solution for Test: Substance and it's Nature - Question 2

A Bose-Einstein Condensate (BEC) is a state of matter that forms at temperatures close to absolute zero. In this state, particles occupy the same space and quantum state, essentially acting as a single quantum entity. This phenomenon was first predicted by Satyendra Nath Bose and Albert Einstein in the early 1920s. BECs exhibit unique quantum effects on a macroscopic scale, making them fascinating subjects of study in physics.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Substance and it's Nature - Question 3

Which characteristic defines the liquid state of matter?

Detailed Solution for Test: Substance and it's Nature - Question 3

Liquids are characterized by particles that are closely packed but not in a fixed arrangement. They have a definite volume but take the shape of their container. This property allows liquids to flow and adapt to the shape of their surroundings. An interesting fact about liquids is that they exhibit surface tension, a phenomenon that gives rise to unique behaviors such as capillary action and droplet formation.

Test: Substance and it's Nature - Question 4

What property of matter is defined as the mass per unit volume of a substance?

Detailed Solution for Test: Substance and it's Nature - Question 4

Density is the property of matter that is defined as the mass per unit volume of a substance. It is calculated using the formula Density (ρ) = Mass (m) / Volume (V). An interesting fact is that density is a key characteristic used to identify and classify materials in various fields such as physics, chemistry, and engineering.

Test: Substance and it's Nature - Question 5

Which property of matter describes the ability of a substance to conduct electricity or heat?

Detailed Solution for Test: Substance and it's Nature - Question 5

Conductivity is the property of matter that describes its ability to conduct electricity or heat. Materials can be classified based on their conductivity properties, with metals typically being good conductors of electricity and heat. This property is crucial in various applications ranging from electrical wiring to thermal management in industrial processes.

Test: Substance and it's Nature - Question 6

What characteristic of matter refers to the temperature at which a solid transforms into a liquid?

Detailed Solution for Test: Substance and it's Nature - Question 6

The characteristic of matter that refers to the temperature at which a solid transforms into a liquid is known as the melting point. It is an essential property used to identify substances and understand their behavior under different conditions. Interestingly, the melting point can vary widely among different materials, influencing their physical states and applications in various industries.

Test: Substance and it's Nature - Question 7

Who is credited with proposing that matter is composed of indivisible particles called "atomos"?

Detailed Solution for Test: Substance and it's Nature - Question 7

Democritus is credited with proposing that matter is composed of indivisible particles called "atomos." This concept of atoms as the fundamental building blocks of matter laid the foundation for modern atomic theory.

Test: Substance and it's Nature - Question 8

Which scientist is known for conducting the gold foil experiment and proposing the nuclear model of the atom?

Detailed Solution for Test: Substance and it's Nature - Question 8

Ernest Rutherford is known for conducting the gold foil experiment, which led to the proposal of the nuclear model of the atom. This model suggested that atoms have a dense, positively charged nucleus surrounded by electrons.

Test: Substance and it's Nature - Question 9

What distinguishes compounds from elements in terms of their composition?

Detailed Solution for Test: Substance and it's Nature - Question 9

Compounds are formed when two or more elements chemically combine in a fixed ratio, resulting in a substance with properties different from the elements that form it. Unlike elements, compounds can be broken down into simpler substances through chemical means.

Test: Substance and it's Nature - Question 10

What is the primary component of atoms that accounts for most of the atom's mass?

Detailed Solution for Test: Substance and it's Nature - Question 10

The primary component of atoms that accounts for most of the atom's mass is the nucleus, which contains protons and neutrons. The nucleus is surrounded by electrons in various energy levels or orbitals. Neutrons and protons are located within the nucleus, while electrons orbit around it in shells.

Test: Substance and it's Nature - Question 11

How are covalent bonds formed between atoms?

Detailed Solution for Test: Substance and it's Nature - Question 11

Covalent bonds are formed by the sharing of electrons between atoms. This sharing of electrons allows each atom to achieve a more stable electron configuration. Covalent bonds are commonly found in molecules such as H2, O2, and H2O.

Test: Substance and it's Nature - Question 12

What did Henry Moseley contribute to the development of the periodic table?

Detailed Solution for Test: Substance and it's Nature - Question 12

Henry Moseley arranged elements in the periodic table by atomic number, which led to the modern periodic table organization we use today. By organizing elements by atomic number, Moseley's work provided a more accurate way to categorize elements and understand their properties based on the number of protons in their nuclei.

Test: Substance and it's Nature - Question 13

What type of chemical reaction involves two or more substances combining to form a single product?

Detailed Solution for Test: Substance and it's Nature - Question 13

Combination reactions involve two or more substances combining to form a single product. In this type of reaction, two or more reactants come together to form a single product. An example of a combination reaction is the formation of water from hydrogen and oxygen gases.

Test: Substance and it's Nature - Question 14

What is the purpose of balancing chemical equations?

Detailed Solution for Test: Substance and it's Nature - Question 14

Balancing chemical equations is essential to ensure the conservation of mass. This process involves making sure that the number of atoms of each element is the same on both sides of the equation. By balancing chemical equations, we maintain the fundamental principle of conservation of mass, which states that matter is neither created nor destroyed in a chemical reaction.

Test: Substance and it's Nature - Question 15

In stoichiometry, what is the mole concept based on?

Detailed Solution for Test: Substance and it's Nature - Question 15

The mole concept in stoichiometry is based on Avogadro's number, which is 6.022 × 10^23 particles in one mole of a substance. This concept allows chemists to relate the mass of a substance to the number of particles it contains, facilitating calculations in chemical reactions.

464 videos|571 docs|394 tests
Information about Test: Substance and it's Nature Page
In this test you can find the Exam questions for Test: Substance and it's Nature solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Substance and it's Nature, EduRev gives you an ample number of Online tests for practice

Top Courses for SSC CGL

464 videos|571 docs|394 tests
Download as PDF

Top Courses for SSC CGL