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Statement A : Mole is quite often known as chemist's dozen.
Statement B : The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
Which of the following two statement(s) is/are true?
- a)Statement A
- b)Neither Statement A nor Statement B.
- c)Statement B
- d)Both the statements - A and B
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Statement A :Mole is quite often known as chemist'sdozen.Statement...
Both the statements are correct. A mole is also known as a chemist's dozen. A mole, just like a dozen, is a common counting unit. A counting unit is a convenient number that makes it easier to count objects. The mass of one-twelfth of the mass of one atom of Carbon is taken as 1 u.
Most Upvoted Answer
Statement A :Mole is quite often known as chemist'sdozen.Statement...
Explanation:
Statement A: Mole is quite often known as chemists dozen.
- This statement is true. In chemistry, mole is often referred to as a chemist's dozen because it is used to count and measure the amount of substance, similar to how a dozen is used to count and measure objects.
- Just like a dozen represents 12 objects, a mole represents 6.022 × 10^23 particles (atoms, molecules, ions, etc.) of a substance.
Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
- This statement is also true. In chemistry, the concept of atomic mass unit (u) is used to express the mass of atoms and molecules.
- The atomic mass unit is defined as one-twelfth (1/12) of the mass of one atom of Carbon-12.
- Carbon-12 is a specific isotope of carbon that has 6 protons and 6 neutrons in its nucleus. Its atomic mass is exactly 12 atomic mass units (u).
- By defining the atomic mass unit based on Carbon-12, it allows for easy comparison of the masses of different atoms and molecules.
Conclusion:
Both Statement A and Statement B are true.
- Statement A correctly describes mole as a chemist's dozen, which is a commonly used term in chemistry.
- Statement B correctly explains the concept of atomic mass unit (u) and its relation to the mass of one atom of Carbon-12.
Statement A: Mole is quite often known as chemists dozen.
- This statement is true. In chemistry, mole is often referred to as a chemist's dozen because it is used to count and measure the amount of substance, similar to how a dozen is used to count and measure objects.
- Just like a dozen represents 12 objects, a mole represents 6.022 × 10^23 particles (atoms, molecules, ions, etc.) of a substance.
Statement B: The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.
- This statement is also true. In chemistry, the concept of atomic mass unit (u) is used to express the mass of atoms and molecules.
- The atomic mass unit is defined as one-twelfth (1/12) of the mass of one atom of Carbon-12.
- Carbon-12 is a specific isotope of carbon that has 6 protons and 6 neutrons in its nucleus. Its atomic mass is exactly 12 atomic mass units (u).
- By defining the atomic mass unit based on Carbon-12, it allows for easy comparison of the masses of different atoms and molecules.
Conclusion:
Both Statement A and Statement B are true.
- Statement A correctly describes mole as a chemist's dozen, which is a commonly used term in chemistry.
- Statement B correctly explains the concept of atomic mass unit (u) and its relation to the mass of one atom of Carbon-12.
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Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)Statement Bd)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer?
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Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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 chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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 chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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 chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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 chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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 chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)Statement Bd)Both the statements - A and BCorrect answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice Statement A :Mole is quite often known as chemist'sdozen.Statement B :The mass of one-twelfth (1/12) of the mass of one atom of Carbon is taken as 1 u.Which of the following two statement(s) is/are true?a)Statement Ab)Neither Statement A nor Statement B.c)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.
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