Plzz explain this

Plzz explain this If X — Y — Z is a compound and X, Y, Z are of comparable size & electronegativity of X = 3.0, Y = 3.5,Z = 0.8 then the bond which will break first in gas phase. (C) Both simultaneously (D) Can't be predicted.

Dear student,

Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves. As the electronegativity of the bonding atom increases, the bond energy also shows an increasing trend. Here, electronegativity of Z is less therefore on exposure to gaseous state bond between Y and Z would break first.
The answer is (2).

Hope this answer will clear your doubts about the topic.

Regards

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