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Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.
Assertion : Beryllium hydride is a covalent hydride.
Reason : The electronegativity difference between Be and H is very high.
- a)If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- b)If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- c)If the assertion is true but the reason is false
- d)If both the assertion and reason are false
Correct answer is option 'C'. Can you explain this answer?
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Direction: In the following questions, a statement of Assertion (A) f...
The electronegativity difference between Be (1.5) and H (2.1) is small.
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Direction: In the following questions, a statement of Assertion (A) f...
Assertion: Beryllium hydride is a covalent hydride.
Reason: The electronegativity difference between Be and H is very high.
The correct answer is option C, which states that the assertion is true but the reason is false.
Explanation:
1. Covalent hydride:
- A covalent hydride is a compound in which hydrogen is bonded to a nonmetal element through a covalent bond.
- In covalent bonding, atoms share electrons to achieve a stable electron configuration.
2. Electronegativity:
- Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond.
- It is determined by factors such as the atomic number, atomic size, and electron configuration of an element.
3. Beryllium hydride (BeH2):
- Beryllium hydride is a compound composed of beryllium (Be) and hydrogen (H) atoms.
- Beryllium is a metal, and hydrogen is a nonmetal.
4. Assertion: Beryllium hydride is a covalent hydride.
- This assertion is true because beryllium hydride is indeed a covalent compound.
- In beryllium hydride, beryllium forms covalent bonds with two hydrogen atoms.
5. Reason: The electronegativity difference between Be and H is very high.
- This reason is false because the electronegativity difference between beryllium and hydrogen is not very high.
- Beryllium has an electronegativity value of 1.57, while hydrogen has an electronegativity value of 2.20 on the Pauling scale.
- The electronegativity difference between beryllium and hydrogen is only 0.63, which is relatively low.
- A high electronegativity difference is typically observed in ionic compounds, not covalent compounds.
6. Conclusion:
- Beryllium hydride is a covalent hydride, as stated in the assertion.
- However, the reason provided for this assertion is incorrect, as the electronegativity difference between Be and H is not very high.
Reason: The electronegativity difference between Be and H is very high.
The correct answer is option C, which states that the assertion is true but the reason is false.
Explanation:
1. Covalent hydride:
- A covalent hydride is a compound in which hydrogen is bonded to a nonmetal element through a covalent bond.
- In covalent bonding, atoms share electrons to achieve a stable electron configuration.
2. Electronegativity:
- Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond.
- It is determined by factors such as the atomic number, atomic size, and electron configuration of an element.
3. Beryllium hydride (BeH2):
- Beryllium hydride is a compound composed of beryllium (Be) and hydrogen (H) atoms.
- Beryllium is a metal, and hydrogen is a nonmetal.
4. Assertion: Beryllium hydride is a covalent hydride.
- This assertion is true because beryllium hydride is indeed a covalent compound.
- In beryllium hydride, beryllium forms covalent bonds with two hydrogen atoms.
5. Reason: The electronegativity difference between Be and H is very high.
- This reason is false because the electronegativity difference between beryllium and hydrogen is not very high.
- Beryllium has an electronegativity value of 1.57, while hydrogen has an electronegativity value of 2.20 on the Pauling scale.
- The electronegativity difference between beryllium and hydrogen is only 0.63, which is relatively low.
- A high electronegativity difference is typically observed in ionic compounds, not covalent compounds.
6. Conclusion:
- Beryllium hydride is a covalent hydride, as stated in the assertion.
- However, the reason provided for this assertion is incorrect, as the electronegativity difference between Be and H is not very high.
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Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer?
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Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. 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 Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. 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 Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer?.
Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. 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 Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. 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 Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Direction: In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the options given below each question.Assertion : Beryllium hydride is a covalent hydride.Reason : The electronegativity difference between Be and H is very high.a)If both the assertion and the reason are true and the reason is a correct explanation of the assertionb)If both the assertion and reason are true but the reason is not a correct explanation of the assertionc)If the assertion is true but the reason is falsed)If both the assertion and reason are falseCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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