MHT CET Chemistry question

Chemistry Classification of Elements and Periodicity in Properties MHT CET

The heat energy required to ionise the following molecules is given as follows

,

,

The correct decreasing order of energy in terms of heat

(A)
(B)
(C)Correct
(D)

Answer: (C)

Solution

The ionisation enthalpy of a molecule depends on its size and on the orbital from which the electron is removed; the order taken for

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Question ID VK-064712