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The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.
Assertion: Be and Mg impart colour to the flame.
Reason: They have high ionisation energies.
- a)A and R both are correct and R is the correct explanation of A.
- b)A and R both are correct but R is not the correct explanation of A.
- c)A is true but R is false.
- d)A is false but R is true.
Correct answer is option 'A'. Can you explain this answer?
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The lighter alkaline earth metals are very important in animal and pl...
Small sized Be and Mg atoms have high ionization energies. Hence, the energy of flame is not sufficient to excite their electrons. Thus, Be and Mg do not produce colour in flame.
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The lighter alkaline earth metals are very important in animal and pl...
Assertion and Reasoning:
Assertion: Be and Mg impart colour to the flame.
Reason: They have high ionisation energies.
Explanation:
When an element is heated in a flame, it absorbs energy and electrons are excited to higher energy levels. As these electrons return to their ground state, they emit energy in the form of light. The light emitted by the excited atoms gives a characteristic color to the flame.
The color of the flame depends on the energy difference between the excited state and the ground state of the electrons in the atoms. The energy difference is related to the ionization energy of the atoms.
Be and Mg have high ionization energies, which means that they require a large amount of energy to remove an electron from their outermost shell. When they are heated in a flame, they absorb a large amount of energy and their electrons are excited to higher energy levels. When these electrons return to their ground state, they emit energy in the form of light of a specific color.
Therefore, the assertion that Be and Mg impart color to the flame is correct.
The reason that they have high ionization energies is also correct. The alkaline earth metals have the second lowest first ionization energies in their respective periods, which means that they have higher ionization energies than the alkali metals. This is due to their smaller atomic size and stronger nuclear charge.
Therefore, the reason given is the correct explanation for the assertion.
Conclusion:
The correct option is (a) A and R both are correct and R is the correct explanation of A.
Assertion: Be and Mg impart colour to the flame.
Reason: They have high ionisation energies.
Explanation:
When an element is heated in a flame, it absorbs energy and electrons are excited to higher energy levels. As these electrons return to their ground state, they emit energy in the form of light. The light emitted by the excited atoms gives a characteristic color to the flame.
The color of the flame depends on the energy difference between the excited state and the ground state of the electrons in the atoms. The energy difference is related to the ionization energy of the atoms.
Be and Mg have high ionization energies, which means that they require a large amount of energy to remove an electron from their outermost shell. When they are heated in a flame, they absorb a large amount of energy and their electrons are excited to higher energy levels. When these electrons return to their ground state, they emit energy in the form of light of a specific color.
Therefore, the assertion that Be and Mg impart color to the flame is correct.
The reason that they have high ionization energies is also correct. The alkaline earth metals have the second lowest first ionization energies in their respective periods, which means that they have higher ionization energies than the alkali metals. This is due to their smaller atomic size and stronger nuclear charge.
Therefore, the reason given is the correct explanation for the assertion.
Conclusion:
The correct option is (a) A and R both are correct and R is the correct explanation of A.
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The lighter alkaline earth metals are very important in animal and pl...
Answer should be d part
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The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?
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The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?.
The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?.
Solutions for The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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Here you can find the meaning of The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The lighter alkaline earth metals are very important in animal and plant physiology. Magnesium functions as the active center in some enzymes and calcium salts take a structural role in bones. The alkaline earth metals have the second lowest first ionisation energies in their respective periods. The ions of these elements perform important biological functions like maintenance of ion balance and nerve impulse conduction. The given questions (i) to (iv) consist of an assertion (A) and reason (R). Choose the correct option.Assertion: Be and Mg impart colour to the flame.Reason: They have high ionisation energies.a)A and R both are correct and R is the correct explanation of A.b)A and R both are correct but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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