JEE Mains Chemistry Past PapershardMCQ SINGLE

Given below are two statements : Statement-I : C < O < N < F is the correct order in terms of first JEE Mains Chemistry Past Papers Chemistry Question

Question

Given below are two statements : Statement-I : C < O < N < F is the correct order in terms of first ionization enthalpy values. Statement-II : S > Se > Te > Po > O is the correct order in terms of the magnitude of electron gain enthalpy values. In the light of the above statements, choose the correct answer from the options given below : (A) Statement-I is false but Statement-II is true (B) Both Statement-I and Statement-II are true. (C) Both Statement-I and Statement-II are false. (D) Statement-I is true but Statement-II is false.

Answer: B

💡 Solution & Explanation

C < O < N < F 2p2 2p4 2p3 2p5 Zeff  I. E.  Statement-I is correct S > Se > Te > Po > O |egH| 200 195 190 174 141 (in kJ/mol) Statement-II is correct.

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