JEE Mains Chemistry Past PapershardMCQ SINGLE

Which of the following statements are correct ? A. The process of adding an electron to a neutral gaJEE Mains Chemistry Past Papers Chemistry Question

Question

Which of the following statements are correct ? A. The process of adding an electron to a neutral gaseous atom is always exothermic. B. The process of removing an electron from an isolated gaseous atom is always endothernue. C. The 1st ionization energy of boron is less than that of beryllium. D. The electronegativity of C is 2.5 in CH4 and CCl4 F. Li is the most electropositive among elements of group I. Choose the correct answer from the options given below: (A) B, C and E Only (B) B and C Only (C) B and D Only (D) A, C and D Only

Answer: B

💡 Solution & Explanation

(i) The process of removing an electron from isolated gaseous atom is always exothermic. (ii) 1st IE of B < Be.

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