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The first (ΔiH1) and the second (ΔiH2) ionization enthalpies (in kJ mol−1) and the ΔegH ∆ egH electron gain enthalpy (in kJ mol−1) of a few elements are given below:

Which of the above is likely to be the metal which can form a predominantly stable covalent halide of the formula MX MX (X = halogen)?
  • a)
    Element (I)
  • b)
    Elements (I), (II)
  • c)
    Elements (III), (VI)
  • d)
    Elements (II), (VI)
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The first (ΔiH1) and the second (ΔiH2) ionization enthalpi...
Element I has low ΔiH1 but very high ΔiH2 . It has less negative electron gain enthalpy. So, element (I) is an alkali metal.
The given values for element I match with lithium. Lithium forms predominantly stable covalent halide of the formula MX.
LiCl is soluble in ethanol because it is predominantly covalent in nature.
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The first (ΔiH1) and the second (ΔiH2) ionization enthalpies (in kJ mol−1) and the ΔegH egH electron gain enthalpy (in kJ mol−1) of a few elements are given below:Which of the above is likely to be the metal which can form a predominantly stable covalent halide of the formula MX MX (X = halogen)?a)Element (I)b)Elements (I), (II)c)Elements (III), (VI)d)Elements (II), (VI)Correct answer is option 'A'. Can you explain this answer?
Question Description
The first (ΔiH1) and the second (ΔiH2) ionization enthalpies (in kJ mol−1) and the ΔegH egH electron gain enthalpy (in kJ mol−1) of a few elements are given below:Which of the above is likely to be the metal which can form a predominantly stable covalent halide of the formula MX MX (X = halogen)?a)Element (I)b)Elements (I), (II)c)Elements (III), (VI)d)Elements (II), (VI)Correct answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The first (ΔiH1) and the second (ΔiH2) ionization enthalpies (in kJ mol−1) and the ΔegH egH electron gain enthalpy (in kJ mol−1) of a few elements are given below:Which of the above is likely to be the metal which can form a predominantly stable covalent halide of the formula MX MX (X = halogen)?a)Element (I)b)Elements (I), (II)c)Elements (III), (VI)d)Elements (II), (VI)Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The first (ΔiH1) and the second (ΔiH2) ionization enthalpies (in kJ mol−1) and the ΔegH egH electron gain enthalpy (in kJ mol−1) of a few elements are given below:Which of the above is likely to be the metal which can form a predominantly stable covalent halide of the formula MX MX (X = halogen)?a)Element (I)b)Elements (I), (II)c)Elements (III), (VI)d)Elements (II), (VI)Correct answer is option 'A'. Can you explain this answer?.
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