Class 9 Exam > Class 9 Questions > Statement A: mole is quite often known as che...
Start Learning for Free
Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is true
- a)Statement A
- b)Statement B.
- c)Neither Statement A nor Statement B
- d)Both the Statements A and B
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Statement A: mole is quite often known as chemists dozen Statement B: ...
Mole is also known as chemist dozen. The mass of one twelfth of the mass of one atom of carbon taken as 1u. So, both the statements are correct.
Most Upvoted Answer
Statement A: mole is quite often known as chemists dozen Statement B: ...
Statement A: Mole is quite often known as chemists dozen.
Statement B: The mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u.
The correct answer is option D: Both statements A and B are true.
Explanation:
Statement A: Mole is quite often known as chemists dozen.
- This statement is true. In chemistry, the mole is a unit of measurement used to express the amount of a substance. It is often referred to as the chemists' dozen because, like a dozen, it represents a specific quantity. In the case of a mole, that quantity is 6.022 x 10^23 particles (Avogadro's number).
Statement B: The mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u.
- This statement is also true. The atomic mass unit (u) is a unit of mass used to express the masses of atoms and molecules. The atomic mass of carbon is approximately 12u. Therefore, one-twelfth of the mass of one carbon atom is equal to 1u.
The concept of the mole is based on the idea that the mass of one mole of a substance is equal to its atomic or molecular mass expressed in grams. For example, the molar mass of carbon is 12g/mol, which means that one mole of carbon atoms has a mass of 12 grams.
The statement "mole is quite often known as chemists dozen" highlights the analogy between the quantity represented by a mole and a dozen. Just as a dozen represents 12 items, a mole represents Avogadro's number (6.022 x 10^23) of particles. This analogy helps chemists visualize and understand the large quantities involved in chemical reactions and calculations.
In summary, both Statement A and Statement B are true. Statement A highlights the common terminology used to refer to the mole, while Statement B describes the relationship between the mass of one atom of carbon and the atomic mass unit.
Statement B: The mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u.
The correct answer is option D: Both statements A and B are true.
Explanation:
Statement A: Mole is quite often known as chemists dozen.
- This statement is true. In chemistry, the mole is a unit of measurement used to express the amount of a substance. It is often referred to as the chemists' dozen because, like a dozen, it represents a specific quantity. In the case of a mole, that quantity is 6.022 x 10^23 particles (Avogadro's number).
Statement B: The mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u.
- This statement is also true. The atomic mass unit (u) is a unit of mass used to express the masses of atoms and molecules. The atomic mass of carbon is approximately 12u. Therefore, one-twelfth of the mass of one carbon atom is equal to 1u.
The concept of the mole is based on the idea that the mass of one mole of a substance is equal to its atomic or molecular mass expressed in grams. For example, the molar mass of carbon is 12g/mol, which means that one mole of carbon atoms has a mass of 12 grams.
The statement "mole is quite often known as chemists dozen" highlights the analogy between the quantity represented by a mole and a dozen. Just as a dozen represents 12 items, a mole represents Avogadro's number (6.022 x 10^23) of particles. This analogy helps chemists visualize and understand the large quantities involved in chemical reactions and calculations.
In summary, both Statement A and Statement B are true. Statement A highlights the common terminology used to refer to the mole, while Statement B describes the relationship between the mass of one atom of carbon and the atomic mass unit.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer?
Question Description
Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer?.
Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Statement A: mole is quite often known as chemists dozen Statement B: the mass of one twelfth (1/12) of the mass of one atom of carbon taken as 1u. Which of the two statement is truea)Statement Ab)Statement B.c)Neither Statement A nor Statement Bd)Both the Statements A and BCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup