MHT CET 2023 Chemistry question

Chemistry Classification of Elements and Periodicity in Properties MHT CET 2023

Which from following is a correct decreasing order of ionization enthalpies of different elements?

(A)S > Se > Te > PoCorrect
(B)Te > Po > S > Se
(C)S > Te > Po > Se
(D)Te > Po > Se > S

Answer: (A)

Solution

S, Se, Te and Po are successive members of group 16. Ionisation enthalpy decreases down a group because atomic size increases and the outer electrons are held less strongly (the increasing shielding outweighs

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Question ID VK-095162