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Among the statements (I - IV), the correct ones are :
(I) Be has a smaller atomic radius compared to Mg.
(II) Be has higher ionization enthalpy than Al.
(III) Charge/radius ratio of Be is greater than that of Al.
IV) Both Be and Al form mainly covalent compounds.
  • a)
    (I), (II) and (IV)
  • b)
    (I), (III) and (IV)
  • c)
    (II), (III) and (IV)
  • d)
    (I), (II) and (III)
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Among the statements (I - IV), the correct ones are :(I) Be has a sma...
Explanation:

(I) Be has a smaller atomic radius compared to Mg.
- This statement is correct because Be has a smaller atomic radius than Mg due to the increased nuclear charge which attracts the electrons more closely to the nucleus, resulting in a smaller atomic radius.

(II) Be has higher ionization enthalpy than Al.
- This statement is correct because Be has a smaller atomic size and stronger nuclear charge, making it more difficult to remove an electron from Be than Al. Hence, Be has a higher ionization enthalpy than Al.

(III) Charge/radius ratio of Be is greater than that of Al.
- This statement is correct because Be has a smaller atomic size and a greater nuclear charge than Al, leading to a higher charge/radius ratio for Be than Al.

(IV) Both Be and Al form mainly covalent compounds.
- This statement is incorrect because Be mainly forms ionic compounds due to its high electronegativity and small atomic size, while Al mainly forms covalent compounds due to its low electronegativity and larger atomic size.

Therefore, the correct statements are (I), (II), and (IV).
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Community Answer
Among the statements (I - IV), the correct ones are :(I) Be has a sma...
Charge/ radius ratio of Be and Al is same because of diagonal relationship. Remaining statements are correct.
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Among the statements (I - IV), the correct ones are :(I) Be has a smaller atomic radius compared to Mg.(II) Be has higher ionization enthalpy than Al.(III) Charge/radius ratio of Be is greater than that of Al.IV) Both Be and Al form mainly covalent compounds.a)(I), (II) and (IV)b)(I), (III) and (IV)c)(II), (III) and (IV)d)(I), (II) and (III)Correct answer is option 'A'. Can you explain this answer?
Question Description
Among the statements (I - IV), the correct ones are :(I) Be has a smaller atomic radius compared to Mg.(II) Be has higher ionization enthalpy than Al.(III) Charge/radius ratio of Be is greater than that of Al.IV) Both Be and Al form mainly covalent compounds.a)(I), (II) and (IV)b)(I), (III) and (IV)c)(II), (III) and (IV)d)(I), (II) and (III)Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Among the statements (I - IV), the correct ones are :(I) Be has a smaller atomic radius compared to Mg.(II) Be has higher ionization enthalpy than Al.(III) Charge/radius ratio of Be is greater than that of Al.IV) Both Be and Al form mainly covalent compounds.a)(I), (II) and (IV)b)(I), (III) and (IV)c)(II), (III) and (IV)d)(I), (II) and (III)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Among the statements (I - IV), the correct ones are :(I) Be has a smaller atomic radius compared to Mg.(II) Be has higher ionization enthalpy than Al.(III) Charge/radius ratio of Be is greater than that of Al.IV) Both Be and Al form mainly covalent compounds.a)(I), (II) and (IV)b)(I), (III) and (IV)c)(II), (III) and (IV)d)(I), (II) and (III)Correct answer is option 'A'. Can you explain this answer?.
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